List of elements


List of elements

Contents

Chemical series legend

Element categories in the periodic table

Metals Metalloids Nonmetals Unknown
chemical
properties
Alkali metals Alkaline earth metals Inner transition metals Transition metals Post-transition metals Other nonmetals Halogens Noble gases
Lanthanides Actinides

Guide to column titles

Z is Atomic number. Sym is Atomic symbol. Name is the name of the element. Grp is the Group. Prd is the Period. Weight is the Atomic weight in Atomic mass units, with measurement uncertainty in parentheses (see Uncertainty#Measurements). Density is in grams per cubic centimeter. Melt is melting point in Kelvin. Boil is boiling point in Kelvin. Heat is specific heat capacity in Joules per gram-Kelvin. Neg is Electronegativity. Abund is Abundance of elements in Earth's crust in ppm by weight.

List

Z
Sym
Name
Group
Prd
Weight
Density
Melt
Boil
Heat
Neg
Abund
1 H Hydrogen 1 1 1.00794(7)2 3 4 0.00008988 14.175 20.28 14.304 2.20 1400
2 He Helium 18 1 4.002602(2)2 4 0.0001785 6 4.22 5.193 0.008
3 Li Lithium 1 2 6.941(2)2 3 4 5 0.534 453.85 1615 3.582 0.98 20
4 Be Beryllium 2 2 9.012182(3) 1.85 1560.15 2742 1.825 1.57 2.8
5 B Boron 13 2 10.811(7)2 3 4 2.34 2573.15 4200 1.026 2.04 10
6 C Carbon 14 2 12.0107(8)2 4 2.267 3948.157 4300 0.709 2.55 200
7 N Nitrogen 15 2 14.0067(2)2 4 0.0012506 63.29 77.36 1.04 3.04 19
8 O Oxygen 16 2 15.9994(3)2 4 0.001429 50.5 90.20 0.918 3.44 461000
9 F Fluorine 17 2 18.9984032(5) 0.001696 53.63 85.03 0.824 3.98 585
10 Ne Neon 18 2 20.1797(6)2 3 0.0008999 24.703 27.07 1.03 0.005
11 Na Sodium 1 3 22.98976928(2) 0.971 371.15 1156 1.228 0.93 23600
12 Mg Magnesium 2 3 24.3050(6) 1.738 923.15 1363 1.023 1.31 23300
13 Al Aluminium 13 3 26.9815386(8) 2.698 933.4 2792 0.897 1.61 82300
14 Si Silicon 14 3 28.0855(3)4 2.3296 1683.15 3538 0.705 1.9 282000
15 P Phosphorus 15 3 30.973762(2) 1.82 317.25 553 0.769 2.19 1050
16 S Sulfur 16 3 32.065(5)2 4 2.067 388.51 717.8 0.71 2.58 350
17 Cl Chlorine 17 3 35.453(2)2 3 4 0.003214 172.31 239.11 0.479 3.16 145
18 Ar Argon 18 3 39.948(1)2 4 0.0017837 83.96 87.30 0.52 3.5
19 K Potassium 1 4 39.0983(1) 0.862 336.5 1032 0.757 0.82 20900
20 Ca Calcium 2 4 40.078(4)2 1.54 1112.15 1757 0.647 1 41500
21 Sc Scandium 3 4 44.955912(6) 2.989 1812.15 3109 0.568 1.36 22
22 Ti Titanium 4 4 47.867(1) 4.54 1933.15 3560 0.523 1.54 5650
23 V Vanadium 5 4 50.9415(1) 6.11 2175.15 3680 0.489 1.63 120
24 Cr Chromium 6 4 51.9961(6) 7.15 2130.15 2944 0.449 1.66 102
25 Mn Manganese 7 4 54.938045(5) 7.44 1519.15 2334 0.479 1.55 950
26 Fe Iron 8 4 55.845(2) 7.874 1808.15 3134 0.449 1.83 56300
27 Co Cobalt 9 4 58.933195(5) 8.86 1768.15 3200 0.421 1.88 25
28 Ni Nickel 10 4 58.6934(4) 8.912 1726.15 3186 0.444 1.91 84
29 Cu Copper 11 4 63.546(3)4 8.96 1357.75 2835 0.385 1.9 60
30 Zn Zinc 12 4 65.38(2) 7.134 692.88 1180 0.388 1.65 70
31 Ga Gallium 13 4 69.723(1) 5.907 302.91 2477 0.371 1.81 19
32 Ge Germanium 14 4 72.64(1) 5.323 1211.45 3106 0.32 2.01 1.5
33 As Arsenic 15 4 74.92160(2) 5.776 1090.157 887 0.329 2.18 1.8
34 Se Selenium 16 4 78.96(3)4 4.809 494.15 958 0.321 2.55 0.05
35 Br Bromine 17 4 79.904(1) 3.122 266.05 332.0 0.474 2.96 2.4
36 Kr Krypton 18 4 83.798(2)2 3 0.003733 115.93 119.93 0.248 3 <0.001
37 Rb Rubidium 1 5 85.4678(3)2 1.532 312.79 961 0.363 0.82 90
38 Sr Strontium 2 5 87.62(1)2 4 2.64 1042.15 1655 0.301 0.95 370
39 Y Yttrium 3 5 88.90585(2) 4.469 1799.15 3609 0.298 1.22 33
40 Zr Zirconium 4 5 91.224(2)2 6.506 2125.15 4682 0.278 1.33 165
41 Nb Niobium 5 5 92.90638(2) 8.57 2741.15 5017 0.265 1.6 20
42 Mo Molybdenum 6 5 95.96(2)2 10.22 2890.15 4912 0.251 2.16 1.2
43 Tc Technetium 7 5 [98]1 11.5 2473.15 5150 1.9 <0.001
44 Ru Ruthenium 8 5 101.07(2)2 12.37 2523.15 4423 0.238 2.2 0.001
45 Rh Rhodium 9 5 102.90550(2) 12.41 2239.15 3968 0.243 2.28 0.001
46 Pd Palladium 10 5 106.42(1)2 12.02 1825.15 3236 0.244 2.2 0.015
47 Ag Silver 11 5 107.8682(2)2 10.501 1234.15 2435 0.235 1.93 0.075
48 Cd Cadmium 12 5 112.411(8)2 8.69 594.33 1040 0.232 1.69 0.159
49 In Indium 13 5 114.818(3) 7.31 429.91 2345 0.233 1.78 0.25
50 Sn Tin 14 5 118.710(7)2 7.287 505.21 2875 0.228 1.96 2.3
51 Sb Antimony 15 5 121.760(1)2 6.685 904.05 1860 0.207 2.05 0.2
52 Te Tellurium 16 5 127.60(3)2 6.232 722.8 1261 0.202 2.1 0.001
53 I Iodine 17 5 126.90447(3) 4.93 386.65 457.4 0.214 2.66 0.45
54 Xe Xenon 18 5 131.293(6)2 3 0.005887 161.45 165.03 0.158 2.6 <0.001
55 Cs Caesium 1 6 132.9054519(2) 1.873 301.7 944 0.242 0.79 3
56 Ba Barium 2 6 137.327(7) 3.594 1002.15 2170 0.204 0.89 425
57 La Lanthanum 6 138.90547(7)2 6.145 1193.15 3737 0.195 1.1 39
58 Ce Cerium 6 140.116(1)2 6.77 1071.15 3716 0.192 1.12 66.5
59 Pr Praseodymium 6 140.90765(2) 6.773 1204.15 3793 0.193 1.13 9.2
60 Nd Neodymium 6 144.242(3)2 7.007 1289.15 3347 0.19 1.14 41.5
61 Pm Promethium 6 [145]1 7.26 1204.15 3273 - <0.001
62 Sm Samarium 6 150.36(2)2 7.52 1345.15 2067 0.197 1.17 7.05
63 Eu Europium 6 151.964(1)2 5.243 1095.15 1802 0.182 1.2 2
64 Gd Gadolinium 6 157.25(3)2 7.895 1585.15 3546 0.236 1.2 6.2
65 Tb Terbium 6 158.92535(2) 8.229 1630.15 3503 0.182 1.2 1.2
66 Dy Dysprosium 6 162.500(1)2 8.55 1680.15 2840 0.17 1.22 5.2
67 Ho Holmium 6 164.93032(2) 8.795 1743.15 2993 0.165 1.23 1.3
68 Er Erbium 6 167.259(3)2 9.066 1795.15 3503 0.168 1.24 3.5
69 Tm Thulium 6 168.93421(2) 9.321 1818.15 2223 0.16 1.25 0.52
70 Yb Ytterbium 6 173.054(5)2 6.965 1097.15 1469 0.155 1.1 3.2
71 Lu Lutetium 3 6 174.9668(1)2 9.84 1936.15 3675 0.154 1.27 0.8
72 Hf Hafnium 4 6 178.49(2) 13.31 2500.15 4876 0.144 1.3 3
73 Ta Tantalum 5 6 180.94788(2) 16.654 3269.15 5731 0.14 1.5 2
74 W Tungsten 6 6 183.84(1) 19.25 3680.15 5828 0.132 2.36 1.3
75 Re Rhenium 7 6 186.207(1) 21.02 3453.15 5869 0.137 1.9 <0.001
76 Os Osmium 8 6 190.23(3)2 22.61 3300.15 5285 0.13 2.2 0.002
77 Ir Iridium 9 6 192.217(3) 22.56 2716.15 4701 0.131 2.2 0.001
78 Pt Platinum 10 6 195.084(9) 21.46 2045.15 4098 0.133 2.28 0.005
79 Au Gold 11 6 196.966569(4) 19.282 1337.73 3129 0.129 2.54 0.004
80 Hg Mercury 12 6 200.59(2) 13.5336 234.43 630 0.14 2 0.085
81 Tl Thallium 13 6 204.3833(2) 11.85 577.15 1746 0.129 1.62 0.85
82 Pb Lead 14 6 207.2(1)2 4 11.342 600.75 2022 0.129 2.33 14
83 Bi Bismuth 15 6 208.98040(1) 9.807 544.67 1837 0.122 2.02 0.009
84 Po Polonium 16 6 [210]1 9.32 527.15 1235 2 <0.001
85 At Astatine 17 6 [210]1 7 575.15 610 2.2 <0.001
86 Rn Radon 18 6 [222]1 0.00973 202.15 211.3 0.094 <0.001
87 Fr Francium 1 7 [223]1 1.87 300.15 950 0.7 <0.001
88 Ra Radium 2 7 [226]1 5.5 973.15 2010 0.9 <0.001
89 Ac Actinium 7 [227]1 10.07 1323.15 3471 0.12 1.1 <0.001
90 Th Thorium 7 232.03806(2)1 2 11.72 2028.15 5061 0.113 1.3 9.6
91 Pa Protactinium 7 231.03588(2)1 15.37 1873.15 4300 1.5 <0.001
92 U Uranium 7 238.02891(3)1 18.95 1405.15 4404 0.116 1.38 2.7
93 Np Neptunium 7 [237]1 20.45 913.15 4273 1.36 <0.001
94 Pu Plutonium 7 [244]1 19.84 913.15 3501 1.28 <0.001
95 Am Americium 7 [243]1 13.69 1267.15 2880 1.3 08
96 Cm Curium 7 [247]1 13.51 1340.15 3383 1.3 0
97 Bk Berkelium 7 [247]1 14.79 1259.15 983 1.3 0
98 Cf Californium 7 [251]1 15.1 1925.15 1173 1.3 0
99 Es Einsteinium 7 [252]1 13.5 1133.15 1.3 0
100 Fm Fermium 7 [257]1 1.3 0
101 Md Mendelevium 7 [258]1 1.3 0
102 No Nobelium 7 [259]1 1.3 0
103 Lr Lawrencium 3 7 [262]1 1.3 0
104 Rf Rutherfordium 4 7 [261]1 18.1 0
105 Db Dubnium 5 7 [262]1 39 0
106 Sg Seaborgium 6 7 [266]1 35 0
107 Bh Bohrium 7 7 [264]1 37 0
108 Hs Hassium 8 7 [267]1 41 0
109 Mt Meitnerium 9 7 [268]1 35 0
110 Ds Darmstadtium 10 7 [271]1 0
111 Rg Roentgenium 11 7 [272]1 0
112 Cn Copernicium 12 7 [285]1 0
113 Uut Ununtrium 13 7 [284]1 0
114 Uuq Ununquadium 14 7 [289]1 0
115 Uup Ununpentium 15 7 [288]1 0
116 Uuh Ununhexium 16 7 [292]1 0
117 Uus Ununseptium 17 7 [295]1 0
118 Uuo Ununoctium 18 7 [294]1 0

Notes

  • ^1 The element does not have any stable nuclides, and a value in brackets, e.g. [209], indicates the mass number of the longest-lived isotope of the element. However, three elements, thorium, protactinium, and uranium, have a characteristic terrestrial isotopic composition, and thus their standard atomic weights are given.
  • ^2 The isotopic composition of this element varies in some geological specimens, and the variation may exceed the uncertainty stated in the table.
  • ^3 The isotopic composition of the element can vary in commercial materials, which can cause the atomic weight to deviate significantly from the given value.
  • ^4 The isotopic composition varies in terrestrial material such that a more precise atomic weight can not be given.
  • ^5 The atomic weight of commercial lithium can vary between 6.939 and 6.996—analysis of the specific material is necessary to find a more accurate value.
  • ^6 Does not solidify at 1 atm, even near absolute zero, but does at 2.5 MPa at 0.95K.
  • ^7 Sublimes at 1 atm
  • ^8 Transuranic elements 95 and above do not occur naturally, but can be produced artificially.

References


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