Periodic Table of Elements
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1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
1 1.008
H
Hydrogen
nonmetal
Hydrogen (H)
Atomic number: 1
Standard Atomic Weight: 1.008 u
Electron configuration: 1s1
Phase at STP: Gas
Melting point: -259.34 °C
Boiling point: -252.87 °C
Density: 0.08988 kg/m³
2 4.003
He
Helium
noble gas
Helium (He)
Atomic number: 2
Standard Atomic Weight: 4.003 u
Electron configuration: 1s2
Phase at STP: Gas
Melting point: -272.2 °C
Boiling point: -268.93 °C
Density: 0.1785 kg/m³
3 6.967
Li
Lithium
alkali metal
Lithium (Li)
Atomic number: 3
Standard Atomic Weight: 6.967 u
Electron configuration: [He]2s1
Phase at STP: Solid
Melting point: 180.5 °C
Boiling point: 1341.85 °C
Density: 534 kg/m³
4 9.012
Be
Beryllium
alkaline earth metal
Beryllium (Be)
Atomic number: 4
Standard Atomic Weight: 9.012 u
Electron configuration: [He]2s2
Phase at STP: Solid
Melting point: 1286.85 °C
Boiling point: 2470.85 °C
Density: 1850 kg/m³
5 10.81
B
Boron
metalloid
Boron (B)
Atomic number: 5
Standard Atomic Weight: 10.81 u
Electron configuration: [He]2s22p1
Phase at STP: Solid
Melting point: 2074.85 °C
Boiling point: 3999.85 °C
Density: 2370 kg/m³
6 12.01
C
Carbon
nonmetal
Carbon (C)
Atomic number: 6
Standard Atomic Weight: 12.01 u
Electron configuration: [He]2s22p2
Phase at STP: Solid
Melting point: 3549.85 °C
Boiling point: 3824.85 °C
Density: 2267 kg/m³
7 14.01
N
Nitrogen
nonmetal
Nitrogen (N)
Atomic number: 7
Standard Atomic Weight: 14.01 u
Electron configuration: 2s2.2p3
Phase at STP: Gas
Melting point: -210 °C
Boiling point: -195.79 °C
Density: 1.251 kg/m³
8 16.00
O
Oxygen
nonmetal
Oxygen (O)
Atomic number: 8
Standard Atomic Weight: 16.00 u
Electron configuration: [He]2s22p4
Phase at STP: Gas
Melting point: -218.79 °C
Boiling point: -182.95 °C
Density: 1.429 kg/m³
9 19.00
F
Fluorine
halogen
Fluorine (F)
Atomic number: 9
Standard Atomic Weight: 19.00 u
Electron configuration: [He]2s22p5
Phase at STP: Gas
Melting point: -219.62 °C
Boiling point: -188.12 °C
Density: 1.696 kg/m³
10 20.18
Ne
Neon
noble gas
Neon (Ne)
Atomic number: 10
Standard Atomic Weight: 20.18 u
Electron configuration: [He]2s22p6
Phase at STP: Gas
Melting point: -248.59 °C
Boiling point: -246.05 °C
Density: 0.8999 kg/m³
11 22.99
Na
Sodium
alkali metal
Sodium (Na)
Atomic number: 11
Standard Atomic Weight: 22.99 u
Electron configuration: [Ne]3s1
Phase at STP: Solid
Melting point: 97.8 °C
Boiling point: 882.85 °C
Density: 970 kg/m³
12 24.31
Mg
Magnesium
alkaline earth metal
Magnesium (Mg)
Atomic number: 12
Standard Atomic Weight: 24.31 u
Electron configuration: [Ne]3s2
Phase at STP: Solid
Melting point: 649.85 °C
Boiling point: 1089.85 °C
Density: 1740 kg/m³
13 26.98
Al
Aluminum
post transition metal
Aluminum (Al)
Atomic number: 13
Standard Atomic Weight: 26.98 u
Electron configuration: [Ne]3s23p1
Phase at STP: Solid
Melting point: 660.29 °C
Boiling point: 2518.85 °C
Density: 2700 kg/m³
14 28.09
Si
Silicon
metalloid
Silicon (Si)
Atomic number: 14
Standard Atomic Weight: 28.09 u
Electron configuration: [Ne]3s23p2
Phase at STP: Solid
Melting point: 1413.85 °C
Boiling point: 3264.85 °C
Density: 2329.6 kg/m³
15 30.97
P
Phosphorus
nonmetal
Phosphorus (P)
Atomic number: 15
Standard Atomic Weight: 30.97 u
Electron configuration: [Ne]3s23p3
Phase at STP: Solid
Melting point: 44.15 °C
Boiling point: 280.5 °C
Density: 1820 kg/m³
16 32.07
S
Sulfur
nonmetal
Sulfur (S)
Atomic number: 16
Standard Atomic Weight: 32.07 u
Electron configuration: [Ne]3s23p4
Phase at STP: Solid
Melting point: 115.21 °C
Boiling point: 444.6 °C
Density: 2067 kg/m³
17 35.45
Cl
Chlorine
halogen
Chlorine (Cl)
Atomic number: 17
Standard Atomic Weight: 35.45 u
Electron configuration: [Ne]3s23p5
Phase at STP: Gas
Melting point: -101.5 °C
Boiling point: -34.04 °C
Density: 3.214 kg/m³
18 39.95
Ar
Argon
noble gas
Argon (Ar)
Atomic number: 18
Standard Atomic Weight: 39.95 u
Electron configuration: [Ne]3s23p6
Phase at STP: Gas
Melting point: -189.35 °C
Boiling point: -185.85 °C
Density: 1.784 kg/m³
19 39.10
K
Potassium
alkali metal
Potassium (K)
Atomic number: 19
Standard Atomic Weight: 39.10 u
Electron configuration: [Ar]4s1
Phase at STP: Solid
Melting point: 63.38 °C
Boiling point: 758.85 °C
Density: 890 kg/m³
20 40.08
Ca
Calcium
alkaline earth metal
Calcium (Ca)
Atomic number: 20
Standard Atomic Weight: 40.08 u
Electron configuration: [Ar]4s2
Phase at STP: Solid
Melting point: 841.85 °C
Boiling point: 1483.85 °C
Density: 1540 kg/m³
21 44.96
Sc
Scandium
transition metal
Scandium (Sc)
Atomic number: 21
Standard Atomic Weight: 44.96 u
Electron configuration: [Ar]4s23d1
Phase at STP: Solid
Melting point: 1540.85 °C
Boiling point: 2835.85 °C
Density: 2990 kg/m³
22 47.87
Ti
Titanium
transition metal
Titanium (Ti)
Atomic number: 22
Standard Atomic Weight: 47.87 u
Electron configuration: [Ar]4s23d2
Phase at STP: Solid
Melting point: 1667.85 °C
Boiling point: 3286.85 °C
Density: 4500 kg/m³
23 50.94
V
Vanadium
transition metal
Vanadium (V)
Atomic number: 23
Standard Atomic Weight: 50.94 u
Electron configuration: [Ar]4s23d3
Phase at STP: Solid
Melting point: 1909.85 °C
Boiling point: 3406.85 °C
Density: 6000 kg/m³
24 52.00
Cr
Chromium
transition metal
Chromium (Cr)
Atomic number: 24
Standard Atomic Weight: 52.00 u
Electron configuration: [Ar]3d54s1
Phase at STP: Solid
Melting point: 1906.85 °C
Boiling point: 2670.85 °C
Density: 7150 kg/m³
25 54.94
Mn
Manganese
transition metal
Manganese (Mn)
Atomic number: 25
Standard Atomic Weight: 54.94 u
Electron configuration: [Ar]4s23d5
Phase at STP: Solid
Melting point: 1245.85 °C
Boiling point: 2060.85 °C
Density: 7300 kg/m³
26 55.84
Fe
Iron
transition metal
Iron (Fe)
Atomic number: 26
Standard Atomic Weight: 55.84 u
Electron configuration: [Ar]4s23d6
Phase at STP: Solid
Melting point: 1537.85 °C
Boiling point: 2860.85 °C
Density: 7874 kg/m³
27 58.93
Co
Cobalt
transition metal
Cobalt (Co)
Atomic number: 27
Standard Atomic Weight: 58.93 u
Electron configuration: [Ar]4s23d7
Phase at STP: Solid
Melting point: 1494.85 °C
Boiling point: 2926.85 °C
Density: 8860 kg/m³
28 58.69
Ni
Nickel
transition metal
Nickel (Ni)
Atomic number: 28
Standard Atomic Weight: 58.69 u
Electron configuration: [Ar]4s23d8
Phase at STP: Solid
Melting point: 1454.85 °C
Boiling point: 2912.85 °C
Density: 8912 kg/m³
29 63.55
Cu
Copper
transition metal
Copper (Cu)
Atomic number: 29
Standard Atomic Weight: 63.55 u
Electron configuration: [Ar]4s13d10
Phase at STP: Solid
Melting point: 1084.62 °C
Boiling point: 2561.85 °C
Density: 8933 kg/m³
30 65.38
Zn
Zinc
transition metal
Zinc (Zn)
Atomic number: 30
Standard Atomic Weight: 65.38 u
Electron configuration: [Ar]4s23d10
Phase at STP: Solid
Melting point: 419.53 °C
Boiling point: 906.85 °C
Density: 7134 kg/m³
31 69.72
Ga
Gallium
post transition metal
Gallium (Ga)
Atomic number: 31
Standard Atomic Weight: 69.72 u
Electron configuration: [Ar]4s23d104p1
Phase at STP: Solid
Melting point: 29.76 °C
Boiling point: 2203.85 °C
Density: 5910 kg/m³
32 72.63
Ge
Germanium
metalloid
Germanium (Ge)
Atomic number: 32
Standard Atomic Weight: 72.63 u
Electron configuration: [Ar]4s23d104p2
Phase at STP: Solid
Melting point: 938.25 °C
Boiling point: 2832.85 °C
Density: 5323.4 kg/m³
33 74.92
As
Arsenic
metalloid
Arsenic (As)
Atomic number: 33
Standard Atomic Weight: 74.92 u
Electron configuration: [Ar]4s23d104p3
Phase at STP: Solid
Melting point: 816.85 °C
Boiling point: 613.85 °C
Density: 5776 kg/m³
34 78.97
Se
Selenium
nonmetal
Selenium (Se)
Atomic number: 34
Standard Atomic Weight: 78.97 u
Electron configuration: [Ar]4s23d104p4
Phase at STP: Solid
Melting point: 220.5 °C
Boiling point: 684.85 °C
Density: 4809 kg/m³
35 79.90
Br
Bromine
halogen
Bromine (Br)
Atomic number: 35
Standard Atomic Weight: 79.90 u
Electron configuration: [Ar]4s23d104p5
Phase at STP: Liquid
Melting point: -7.2 °C
Boiling point: 58.8 °C
Density: 3102.8 kg/m³
36 83.80
Kr
Krypton
noble gas
Krypton (Kr)
Atomic number: 36
Standard Atomic Weight: 83.80 u
Electron configuration: [Ar]4s23d104p6
Phase at STP: Gas
Melting point: -157.36 °C
Boiling point: -153.42 °C
Density: 3.733 kg/m³
37 85.47
Rb
Rubidium
alkali metal
Rubidium (Rb)
Atomic number: 37
Standard Atomic Weight: 85.47 u
Electron configuration: [Kr]5s1
Phase at STP: Solid
Melting point: 39.31 °C
Boiling point: 687.85 °C
Density: 1530 kg/m³
38 87.62
Sr
Strontium
alkaline earth metal
Strontium (Sr)
Atomic number: 38
Standard Atomic Weight: 87.62 u
Electron configuration: [Kr]5s2
Phase at STP: Solid
Melting point: 776.85 °C
Boiling point: 1381.85 °C
Density: 2640 kg/m³
39 88.91
Y
Yttrium
transition metal
Yttrium (Y)
Atomic number: 39
Standard Atomic Weight: 88.91 u
Electron configuration: [Kr]5s24d1
Phase at STP: Solid
Melting point: 1521.85 °C
Boiling point: 3344.85 °C
Density: 4470 kg/m³
40 91.22
Zr
Zirconium
transition metal
Zirconium (Zr)
Atomic number: 40
Standard Atomic Weight: 91.22 u
Electron configuration: [Kr]5s24d2
Phase at STP: Solid
Melting point: 1854.85 °C
Boiling point: 4408.85 °C
Density: 6520 kg/m³
41 92.91
Nb
Niobium
transition metal
Niobium (Nb)
Atomic number: 41
Standard Atomic Weight: 92.91 u
Electron configuration: [Kr]5s14d4
Phase at STP: Solid
Melting point: 2476.85 °C
Boiling point: 4743.85 °C
Density: 8570 kg/m³
42 95.95
Mo
Molybdenum
transition metal
Molybdenum (Mo)
Atomic number: 42
Standard Atomic Weight: 95.95 u
Electron configuration: [Kr]5s14d5
Phase at STP: Solid
Melting point: 2622.85 °C
Boiling point: 4638.85 °C
Density: 1.020e+4 kg/m³
43 98.00
Tc
Technetium
transition metal
Technetium (Tc)
Atomic number: 43
Standard Atomic Weight: 98.00 u
Electron configuration: [Kr]5s24d5
Phase at STP: Solid
Melting point: 2156.85 °C
Boiling point: 4264.85 °C
Density: 1.100e+4 kg/m³
44 101.1
Ru
Ruthenium
transition metal
Ruthenium (Ru)
Atomic number: 44
Standard Atomic Weight: 101.1 u
Electron configuration: [Kr]5s14d7
Phase at STP: Solid
Melting point: 2333.85 °C
Boiling point: 4149.85 °C
Density: 1.210e+4 kg/m³
45 102.9
Rh
Rhodium
transition metal
Rhodium (Rh)
Atomic number: 45
Standard Atomic Weight: 102.9 u
Electron configuration: [Kr]5s14d8
Phase at STP: Solid
Melting point: 1963.85 °C
Boiling point: 3694.85 °C
Density: 1.240e+4 kg/m³
46 106.4
Pd
Palladium
transition metal
Palladium (Pd)
Atomic number: 46
Standard Atomic Weight: 106.4 u
Electron configuration: [Kr]4d10
Phase at STP: Solid
Melting point: 1554.9 °C
Boiling point: 2962.85 °C
Density: 1.200e+4 kg/m³
47 107.9
Ag
Silver
transition metal
Silver (Ag)
Atomic number: 47
Standard Atomic Weight: 107.9 u
Electron configuration: [Kr]5s14d10
Phase at STP: Solid
Melting point: 961.78 °C
Boiling point: 2161.85 °C
Density: 1.050e+4 kg/m³
48 112.4
Cd
Cadmium
transition metal
Cadmium (Cd)
Atomic number: 48
Standard Atomic Weight: 112.4 u
Electron configuration: [Kr]5s24d10
Phase at STP: Solid
Melting point: 321.07 °C
Boiling point: 766.85 °C
Density: 8690 kg/m³
49 114.8
In
Indium
post transition metal
Indium (In)
Atomic number: 49
Standard Atomic Weight: 114.8 u
Electron configuration: [Kr]5s24d105p1
Phase at STP: Solid
Melting point: 156.6 °C
Boiling point: 2071.85 °C
Density: 7310 kg/m³
50 118.7
Sn
Tin
post transition metal
Tin (Sn)
Atomic number: 50
Standard Atomic Weight: 118.7 u
Electron configuration: [Kr]5s24d105p2
Phase at STP: Solid
Melting point: 231.93 °C
Boiling point: 2601.85 °C
Density: 7287 kg/m³
51 121.8
Sb
Antimony
metalloid
Antimony (Sb)
Atomic number: 51
Standard Atomic Weight: 121.8 u
Electron configuration: [Kr]5s24d105p3
Phase at STP: Solid
Melting point: 630.63 °C
Boiling point: 1586.85 °C
Density: 6685 kg/m³
52 127.6
Te
Tellurium
metalloid
Tellurium (Te)
Atomic number: 52
Standard Atomic Weight: 127.6 u
Electron configuration: [Kr]5s24d105p4
Phase at STP: Solid
Melting point: 449.51 °C
Boiling point: 987.85 °C
Density: 6232 kg/m³
53 126.9
I
Iodine
halogen
Iodine (I)
Atomic number: 53
Standard Atomic Weight: 126.9 u
Electron configuration: [Kr]5s24d105p5
Phase at STP: Solid
Melting point: 113.7 °C
Boiling point: 184.4 °C
Density: 4930 kg/m³
54 131.3
Xe
Xenon
noble gas
Xenon (Xe)
Atomic number: 54
Standard Atomic Weight: 131.3 u
Electron configuration: [Kr]5s24d105p6
Phase at STP: Gas
Melting point: -111.79 °C
Boiling point: -108.1 °C
Density: 5.887 kg/m³
55 132.9
Cs
Cesium
alkali metal
Cesium (Cs)
Atomic number: 55
Standard Atomic Weight: 132.9 u
Electron configuration: [Xe]6s1
Phase at STP: Solid
Melting point: 28.44 °C
Boiling point: 670.85 °C
Density: 1930 kg/m³
56 137.3
Ba
Barium
alkaline earth metal
Barium (Ba)
Atomic number: 56
Standard Atomic Weight: 137.3 u
Electron configuration: [Xe]6s2
Phase at STP: Solid
Melting point: 726.85 °C
Boiling point: 1896.85 °C
Density: 3620 kg/m³
72 178.5
Hf
Hafnium
transition metal
Hafnium (Hf)
Atomic number: 72
Standard Atomic Weight: 178.5 u
Electron configuration: [Xe]6s24f145d2
Phase at STP: Solid
Melting point: 2232.85 °C
Boiling point: 4602.85 °C
Density: 1.330e+4 kg/m³
73 180.9
Ta
Tantalum
transition metal
Tantalum (Ta)
Atomic number: 73
Standard Atomic Weight: 180.9 u
Electron configuration: [Xe]6s24f145d3
Phase at STP: Solid
Melting point: 3016.85 °C
Boiling point: 5457.85 °C
Density: 1.640e+4 kg/m³
74 183.8
W
Tungsten
transition metal
Tungsten (W)
Atomic number: 74
Standard Atomic Weight: 183.8 u
Electron configuration: [Xe]6s24f145d4
Phase at STP: Solid
Melting point: 3421.85 °C
Boiling point: 5554.85 °C
Density: 1.930e+4 kg/m³
75 186.2
Re
Rhenium
transition metal
Rhenium (Re)
Atomic number: 75
Standard Atomic Weight: 186.2 u
Electron configuration: [Xe]6s24f145d5
Phase at STP: Solid
Melting point: 3185.85 °C
Boiling point: 5595.85 °C
Density: 2.080e+4 kg/m³
76 190.2
Os
Osmium
transition metal
Osmium (Os)
Atomic number: 76
Standard Atomic Weight: 190.2 u
Electron configuration: [Xe]6s24f145d6
Phase at STP: Solid
Melting point: 3032.85 °C
Boiling point: 5011.85 °C
Density: 2.259e+4 kg/m³
77 192.2
Ir
Iridium
transition metal
Iridium (Ir)
Atomic number: 77
Standard Atomic Weight: 192.2 u
Electron configuration: [Xe]6s24f145d7
Phase at STP: Solid
Melting point: 2445.85 °C
Boiling point: 4427.85 °C
Density: 2.256e+4 kg/m³
78 195.1
Pt
Platinum
transition metal
Platinum (Pt)
Atomic number: 78
Standard Atomic Weight: 195.1 u
Electron configuration: [Xe]6s14f145d9
Phase at STP: Solid
Melting point: 1768.4 °C
Boiling point: 3824.85 °C
Density: 2.146e+4 kg/m³
79 197.0
Au
Gold
transition metal
Gold (Au)
Atomic number: 79
Standard Atomic Weight: 197.0 u
Electron configuration: [Xe]6s14f145d10
Phase at STP: Solid
Melting point: 1064.18 °C
Boiling point: 2855.85 °C
Density: 1.928e+4 kg/m³
80 200.6
Hg
Mercury
transition metal
Mercury (Hg)
Atomic number: 80
Standard Atomic Weight: 200.6 u
Electron configuration: [Xe]6s24f145d10
Phase at STP: Liquid
Melting point: -38.83 °C
Boiling point: 356.73 °C
Density: 1.353e+4 kg/m³
81 204.4
Tl
Thallium
post transition metal
Thallium (Tl)
Atomic number: 81
Standard Atomic Weight: 204.4 u
Electron configuration: [Xe]6s24f145d106p1
Phase at STP: Solid
Melting point: 303.85 °C
Boiling point: 1472.85 °C
Density: 1.180e+4 kg/m³
82 207.2
Pb
Lead
post transition metal
Lead (Pb)
Atomic number: 82
Standard Atomic Weight: 207.2 u
Electron configuration: [Xe]6s24f145d106p2
Phase at STP: Solid
Melting point: 327.46 °C
Boiling point: 1748.85 °C
Density: 1.134e+4 kg/m³
83 209.0
Bi
Bismuth
post transition metal
Bismuth (Bi)
Atomic number: 83
Standard Atomic Weight: 209.0 u
Electron configuration: [Xe]6s24f145d106p3
Phase at STP: Solid
Melting point: 271.4 °C
Boiling point: 1563.85 °C
Density: 9807 kg/m³
84 209.0
Po
Polonium
metalloid
Polonium (Po)
Atomic number: 84
Standard Atomic Weight: 209.0 u
Electron configuration: [Xe]6s24f145d106p4
Phase at STP: Solid
Melting point: 253.85 °C
Boiling point: 961.85 °C
Density: 9320 kg/m³
85 210.0
At
Astatine
halogen
Astatine (At)
Atomic number: 85
Standard Atomic Weight: 210.0 u
Electron configuration: [Xe]6s24f145d106p5
Phase at STP: Solid
Melting point: 301.85 °C
Density: 7000 kg/m³
86 222.0
Rn
Radon
noble gas
Radon (Rn)
Atomic number: 86
Standard Atomic Weight: 222.0 u
Electron configuration: [Xe]6s24f145d106p6
Phase at STP: Gas
Melting point: -71.15 °C
Boiling point: -61.7 °C
Density: 9.73 kg/m³
87 223.0
Fr
Francium
alkali metal
Francium (Fr)
Atomic number: 87
Standard Atomic Weight: 223.0 u
Electron configuration: [Rn]7s1
Phase at STP: Solid
Melting point: 26.85 °C
Density: 1870 kg/m³
88 226.0
Ra
Radium
alkaline earth metal
Radium (Ra)
Atomic number: 88
Standard Atomic Weight: 226.0 u
Electron configuration: [Rn]7s2
Phase at STP: Solid
Melting point: 699.85 °C
Boiling point: 1139.85 °C
Density: 5000 kg/m³
104 263.0
Rf
Rutherfordium
transition metal
Rutherfordium (Rf)
Atomic number: 104
Standard Atomic Weight: 263.0 u
Electron configuration: [Rn]7s25f146d2
Phase at STP: Solid
Melting point: 2126.85 °C
Boiling point: 5526.85 °C
Density: 2.330e+4 kg/m³
105 268.0
Db
Dubnium
transition metal
Dubnium (Db)
Atomic number: 105
Standard Atomic Weight: 268.0 u
Electron configuration: [Rn]7s25f146d3
Density: 2.930e+4 kg/m³
106 271.0
Sg
Seaborgium
transition metal
Seaborgium (Sg)
Atomic number: 106
Standard Atomic Weight: 271.0 u
Electron configuration: [Rn]7s25f146d4
Density: 3.500e+4 kg/m³
107 270.0
Bh
Bohrium
transition metal
Bohrium (Bh)
Atomic number: 107
Standard Atomic Weight: 270.0 u
Electron configuration: [Rn]7s25f146d5
Density: 3.710e+4 kg/m³
108 270.0
Hs
Hassium
transition metal
Hassium (Hs)
Atomic number: 108
Standard Atomic Weight: 270.0 u
Electron configuration: [Rn]7s25f146d6
Density: 4.070e+4 kg/m³
109 278.0
Mt
Meitnerium
transition metal
Meitnerium (Mt)
Atomic number: 109
Standard Atomic Weight: 278.0 u
Electron configuration: [Rn]7s25f146d7(calculated)
Density: 3.740e+4 kg/m³
110 281.0
Ds
Darmstadtium
transition metal
Darmstadtium (Ds)
Atomic number: 110
Standard Atomic Weight: 281.0 u
Electron configuration: [Rn]7s25f146d8(predicted)
Density: 3.480e+4 kg/m³
111 281.0
Rg
Roentgenium
transition metal
Roentgenium (Rg)
Atomic number: 111
Standard Atomic Weight: 281.0 u
Electron configuration: [Rn] 7s2 5f14 6d9(predicted)
Density: 2.870e+4 kg/m³
112 285.0
Cn
Copernicium
transition metal
Copernicium (Cn)
Atomic number: 112
Standard Atomic Weight: 285.0 u
Electron configuration: [Rn] 7s2 5f14 6d10(predicted)
Phase at STP: Gas
Boiling point: -165.15 °C
Density: 1.400e+4 kg/m³
113 286.0
Nh
Nihonium
post transition metal
Nihonium (Nh)
Atomic number: 113
Standard Atomic Weight: 286.0 u
Electron configuration: [Rn] 5f14 6d10 7s2 7p1(predicted)
Phase at STP: Solid
Melting point: 426.85 °C
Boiling point: 1156.85 °C
Density: 1.600e+4 kg/m³
114 289.0
Fl
Flerovium
post transition metal
Flerovium (Fl)
Atomic number: 114
Standard Atomic Weight: 289.0 u
Electron configuration: [Rn] 7s27p2 5f14 6d10(predicted)
Phase at STP: Gas
Boiling point: -63.15 °C
Density: 9928 kg/m³
115 289.0
Mc
Moscovium
post transition metal
Moscovium (Mc)
Atomic number: 115
Standard Atomic Weight: 289.0 u
Electron configuration: [Rn] 7s2 7p3 5f14 6d10(predicted)
Phase at STP: Solid
Melting point: 396.85 °C
Boiling point: 1126.85 °C
Density: 1.350e+4 kg/m³
116 293.0
Lv
Livermorium
post transition metal
Livermorium (Lv)
Atomic number: 116
Standard Atomic Weight: 293.0 u
Electron configuration: [Rn] 7s2 7p4 5f14 6d10(predicted)
Phase at STP: Solid
Melting point: 506.85 °C
Boiling point: 861.85 °C
Density: 1.290e+4 kg/m³
117 294.0
Ts
Tennessine
halogen
Tennessine (Ts)
Atomic number: 117
Standard Atomic Weight: 294.0 u
Electron configuration: [Rn] 7s2 7p5 5f14 6d10(predicted)
Phase at STP: Solid
Melting point: 549.85 °C
Boiling point: 609.85 °C
Density: 7200 kg/m³
118 294.0
Og
Oganesson
noble gas
Oganesson (Og)
Atomic number: 118
Standard Atomic Weight: 294.0 u
Electron configuration: [Rn] 7s2 7p6 5f14 6d10(predicted)
Phase at STP: Gas
Boiling point: -243.15 °C
Density: 7000 kg/m³
57–71
89–103
f
6
7
57 138.9
La
Lanthanum
lanthanide
Lanthanum (La)
Atomic number: 57
Standard Atomic Weight: 138.9 u
Electron configuration: [Xe]6s25d1
Phase at STP: Solid
Melting point: 917.85 °C
Boiling point: 3463.85 °C
Density: 6150 kg/m³
58 140.1
Ce
Cerium
lanthanide
Cerium (Ce)
Atomic number: 58
Standard Atomic Weight: 140.1 u
Electron configuration: [Xe]6s24f15d1
Phase at STP: Solid
Melting point: 797.85 °C
Boiling point: 3423.85 °C
Density: 6770 kg/m³
59 140.9
Pr
Praseodymium
lanthanide
Praseodymium (Pr)
Atomic number: 59
Standard Atomic Weight: 140.9 u
Electron configuration: [Xe]6s24f3
Phase at STP: Solid
Melting point: 930.85 °C
Boiling point: 3519.85 °C
Density: 6770 kg/m³
60 144.2
Nd
Neodymium
lanthanide
Neodymium (Nd)
Atomic number: 60
Standard Atomic Weight: 144.2 u
Electron configuration: [Xe]6s24f4
Phase at STP: Solid
Melting point: 1020.85 °C
Boiling point: 3073.85 °C
Density: 7010 kg/m³
61 145.0
Pm
Promethium
lanthanide
Promethium (Pm)
Atomic number: 61
Standard Atomic Weight: 145.0 u
Electron configuration: [Xe]6s24f5
Phase at STP: Solid
Melting point: 1041.85 °C
Boiling point: 2999.85 °C
Density: 7260 kg/m³
62 150.4
Sm
Samarium
lanthanide
Samarium (Sm)
Atomic number: 62
Standard Atomic Weight: 150.4 u
Electron configuration: [Xe]6s24f6
Phase at STP: Solid
Melting point: 1073.85 °C
Boiling point: 1793.85 °C
Density: 7520 kg/m³
63 152.0
Eu
Europium
lanthanide
Europium (Eu)
Atomic number: 63
Standard Atomic Weight: 152.0 u
Electron configuration: [Xe]6s24f7
Phase at STP: Solid
Melting point: 821.85 °C
Boiling point: 1528.85 °C
Density: 5240 kg/m³
64 157.3
Gd
Gadolinium
lanthanide
Gadolinium (Gd)
Atomic number: 64
Standard Atomic Weight: 157.3 u
Electron configuration: [Xe]6s24f75d1
Phase at STP: Solid
Melting point: 1312.85 °C
Boiling point: 3272.85 °C
Density: 7900 kg/m³
65 158.9
Tb
Terbium
lanthanide
Terbium (Tb)
Atomic number: 65
Standard Atomic Weight: 158.9 u
Electron configuration: [Xe]6s24f9
Phase at STP: Solid
Melting point: 1355.85 °C
Boiling point: 3229.85 °C
Density: 8230 kg/m³
66 162.5
Dy
Dysprosium
lanthanide
Dysprosium (Dy)
Atomic number: 66
Standard Atomic Weight: 162.5 u
Electron configuration: [Xe]6s24f10
Phase at STP: Solid
Melting point: 1411.85 °C
Boiling point: 2566.85 °C
Density: 8550 kg/m³
67 164.9
Ho
Holmium
lanthanide
Holmium (Ho)
Atomic number: 67
Standard Atomic Weight: 164.9 u
Electron configuration: [Xe]6s24f11
Phase at STP: Solid
Melting point: 1473.85 °C
Boiling point: 2699.85 °C
Density: 8800 kg/m³
68 167.3
Er
Erbium
lanthanide
Erbium (Er)
Atomic number: 68
Standard Atomic Weight: 167.3 u
Electron configuration: [Xe]6s24f12
Phase at STP: Solid
Melting point: 1528.85 °C
Boiling point: 2867.85 °C
Density: 9070 kg/m³
69 168.9
Tm
Thulium
lanthanide
Thulium (Tm)
Atomic number: 69
Standard Atomic Weight: 168.9 u
Electron configuration: [Xe]6s24f13
Phase at STP: Solid
Melting point: 1544.85 °C
Boiling point: 1949.85 °C
Density: 9320 kg/m³
70 173.1
Yb
Ytterbium
lanthanide
Ytterbium (Yb)
Atomic number: 70
Standard Atomic Weight: 173.1 u
Electron configuration: [Xe]6s24f14
Phase at STP: Solid
Melting point: 818.85 °C
Boiling point: 1195.85 °C
Density: 6900 kg/m³
71 175.0
Lu
Lutetium
lanthanide
Lutetium (Lu)
Atomic number: 71
Standard Atomic Weight: 175.0 u
Electron configuration: [Xe]6s24f145d1
Phase at STP: Solid
Melting point: 1662.85 °C
Boiling point: 3401.85 °C
Density: 9840 kg/m³
89 227.0
Ac
Actinium
actinide
Actinium (Ac)
Atomic number: 89
Standard Atomic Weight: 227.0 u
Electron configuration: [Rn]7s26d1
Phase at STP: Solid
Melting point: 1050.85 °C
Boiling point: 3197.85 °C
Density: 1.007e+4 kg/m³
90 232.0
Th
Thorium
actinide
Thorium (Th)
Atomic number: 90
Standard Atomic Weight: 232.0 u
Electron configuration: [Rn]7s26d2
Phase at STP: Solid
Melting point: 1749.85 °C
Boiling point: 4787.85 °C
Density: 1.172e+4 kg/m³
91 231.0
Pa
Protactinium
actinide
Protactinium (Pa)
Atomic number: 91
Standard Atomic Weight: 231.0 u
Electron configuration: [Rn]7s25f26d1
Phase at STP: Solid
Melting point: 1571.85 °C
Density: 1.537e+4 kg/m³
92 238.0
U
Uranium
actinide
Uranium (U)
Atomic number: 92
Standard Atomic Weight: 238.0 u
Electron configuration: [Rn]7s25f36d1
Phase at STP: Solid
Melting point: 1134.85 °C
Boiling point: 4130.85 °C
Density: 1.895e+4 kg/m³
93 237.0
Np
Neptunium
actinide
Neptunium (Np)
Atomic number: 93
Standard Atomic Weight: 237.0 u
Electron configuration: [Rn]7s25f46d1
Phase at STP: Solid
Melting point: 643.85 °C
Boiling point: 3901.85 °C
Density: 2.025e+4 kg/m³
94 244.0
Pu
Plutonium
actinide
Plutonium (Pu)
Atomic number: 94
Standard Atomic Weight: 244.0 u
Electron configuration: [Rn]7s25f6
Phase at STP: Solid
Melting point: 639.85 °C
Boiling point: 3227.85 °C
Density: 1.984e+4 kg/m³
95 243.0
Am
Americium
actinide
Americium (Am)
Atomic number: 95
Standard Atomic Weight: 243.0 u
Electron configuration: [Rn]7s25f7
Phase at STP: Solid
Melting point: 1175.85 °C
Boiling point: 2010.85 °C
Density: 1.369e+4 kg/m³
96 247.0
Cm
Curium
actinide
Curium (Cm)
Atomic number: 96
Standard Atomic Weight: 247.0 u
Electron configuration: [Rn]7s25f76d1
Phase at STP: Solid
Melting point: 1344.85 °C
Boiling point: 3126.85 °C
Density: 1.351e+4 kg/m³
97 247.0
Bk
Berkelium
actinide
Berkelium (Bk)
Atomic number: 97
Standard Atomic Weight: 247.0 u
Electron configuration: [Rn]7s25f9
Phase at STP: Solid
Melting point: 1049.85 °C
Density: 1.400e+4 kg/m³
98 251.0
Cf
Californium
actinide
Californium (Cf)
Atomic number: 98
Standard Atomic Weight: 251.0 u
Electron configuration: [Rn]7s25f10
Phase at STP: Solid
Melting point: 899.85 °C
Density: 1.510e+4 kg/m³
99 252.0
Es
Einsteinium
actinide
Einsteinium (Es)
Atomic number: 99
Standard Atomic Weight: 252.0 u
Electron configuration: [Rn]7s25f11
Phase at STP: Solid
Melting point: 859.85 °C
Density: 8840 kg/m³
100 257.0
Fm
Fermium
actinide
Fermium (Fm)
Atomic number: 100
Standard Atomic Weight: 257.0 u
Electron configuration: [Rn] 5f12 7s2
Phase at STP: Solid
Melting point: 1526.85 °C
Density: 9700 kg/m³
101 258.0
Md
Mendelevium
actinide
Mendelevium (Md)
Atomic number: 101
Standard Atomic Weight: 258.0 u
Electron configuration: [Rn]7s25f13
Phase at STP: Solid
Melting point: 826.85 °C
Density: 1.030e+4 kg/m³
102 259.0
No
Nobelium
actinide
Nobelium (No)
Atomic number: 102
Standard Atomic Weight: 259.0 u
Electron configuration: [Rn]7s25f14
Phase at STP: Solid
Melting point: 826.85 °C
Density: 9900 kg/m³
103 262.0
Lr
Lawrencium
actinide
Lawrencium (Lr)
Atomic number: 103
Standard Atomic Weight: 262.0 u
Electron configuration: [Rn]7s25f146d1
Phase at STP: Solid
Melting point: 1626.85 °C
Density: 1.560e+4 kg/m³
H
Hydrogen
›
He
Helium
›
Li
Lithium
›
Be
Beryllium
›
B
Boron
›
C
Carbon
›
N
Nitrogen
›
O
Oxygen
›
F
Fluorine
›
Ne
Neon
›
Na
Sodium
›
Mg
Magnesium
›
Al
Aluminum
›
Si
Silicon
›
P
Phosphorus
›
S
Sulfur
›
Cl
Chlorine
›
Ar
Argon
›
K
Potassium
›
Ca
Calcium
›
Sc
Scandium
›
Ti
Titanium
›
V
Vanadium
›
Cr
Chromium
›
Mn
Manganese
›
Fe
Iron
›
Co
Cobalt
›
Ni
Nickel
›
Cu
Copper
›
Zn
Zinc
›
Ga
Gallium
›
Ge
Germanium
›
As
Arsenic
›
Se
Selenium
›
Br
Bromine
›
Kr
Krypton
›
Rb
Rubidium
›
Sr
Strontium
›
Y
Yttrium
›
Zr
Zirconium
›
Nb
Niobium
›
Mo
Molybdenum
›
Tc
Technetium
›
Ru
Ruthenium
›
Rh
Rhodium
›
Pd
Palladium
›
Ag
Silver
›
Cd
Cadmium
›
In
Indium
›
Sn
Tin
›
Sb
Antimony
›
Te
Tellurium
›
I
Iodine
›
Xe
Xenon
›
Cs
Cesium
›
Ba
Barium
›
La
Lanthanum
›
Ce
Cerium
›
Pr
Praseodymium
›
Nd
Neodymium
›
Pm
Promethium
›
Sm
Samarium
›
Eu
Europium
›
Gd
Gadolinium
›
Tb
Terbium
›
Dy
Dysprosium
›
Ho
Holmium
›
Er
Erbium
›
Tm
Thulium
›
Yb
Ytterbium
›
Lu
Lutetium
›
Hf
Hafnium
›
Ta
Tantalum
›
W
Tungsten
›
Re
Rhenium
›
Os
Osmium
›
Ir
Iridium
›
Pt
Platinum
›
Au
Gold
›
Hg
Mercury
›
Tl
Thallium
›
Pb
Lead
›
Bi
Bismuth
›
Po
Polonium
›
At
Astatine
›
Rn
Radon
›
Fr
Francium
›
Ra
Radium
›
Ac
Actinium
›
Th
Thorium
›
Pa
Protactinium
›
U
Uranium
›
Np
Neptunium
›
Pu
Plutonium
›
Am
Americium
›
Cm
Curium
›
Bk
Berkelium
›
Cf
Californium
›
Es
Einsteinium
›
Fm
Fermium
›
Md
Mendelevium
›
No
Nobelium
›
Lr
Lawrencium
›
Rf
Rutherfordium
›
Db
Dubnium
›
Sg
Seaborgium
›
Bh
Bohrium
›
Hs
Hassium
›
Mt
Meitnerium
›
Ds
Darmstadtium
›
Rg
Roentgenium
›
Cn
Copernicium
›
Nh
Nihonium
›
Fl
Flerovium
›
Mc
Moscovium
›
Lv
Livermorium
›
Ts
Tennessine
›
Og
Oganesson
›
Display Property or Trend: Chemical Group / Family — Cells are colored by chemical group/family. Pastel colors make black text easy to read.
Speculative Element
This is a speculative element. Its existence has not been experimentally confirmed.
🔬 Near-real 🧪 Theoretical ⚠️ Hypothetical 🚫 Impossible