List of chemical elements with properties
The element number is identical to the amount of protons in the atom nucleus. The amount of neutrons of an element varies, two atoms with the same amount of protons and neutrons are of the same isotope. You'll get the number of neutrons, if you subtract the number of protons from the atomic mass of an isotope. E.g. 56Fe has 56 - 26 = 30 neutrons.
Period refers to the horizontal, group to the vertical position.
The unit of the mass is u (or g/mol), the unified atomic mass unit. This is 1/12 of the mass of 12C, or 1.660538782 *10-24 gramms.
The radius is the empirically measured atomic radius (at noble gases the calculated radius) and is given in 10-12 meters (pikometers).
Valence el. stands for the number of valence electrons. At transition metals, this number is meaningless and therefore obmitted.
Melting- and boiling point refer to standard pressure (1013 millibar) and are given in Kelvin. At standard pressure helium has no solid state, arsenic has no liquid state.
The density is given in g/cm3, at gases flagged with * in g/L (=1/1000 g/cm3), at 20° C.
~ stands for approximately, when an exact value isn't known.
SI units are used. Visit this site to convert temperature, mass and other units and properties.
Number | Period | Group | Symbol | Name | Mass | Radius | Valence el. | Stable isotopes | Melting point | Boiling point | Density |
---|---|---|---|---|---|---|---|---|---|---|---|
1 | 1 | 1 | H | Hydrogen | 1.008 | 25 | 1 | 2 | 14.1 | 20.3 | 0.084* |
2 | 1 | 18 | He | Helium | 4.003 | 31 | 2 | 2 | 4.2 | 0.17* | |
Number | Period | Group | Symbol | Name | Mass | Radius | Valence el. | Stable isotopes | Melting point | Boiling point | Density |
3 | 2 | 1 | Li | Lithium | 6.941 | 145 | 1 | 2 | 454 | 1615 | 0.53 |
4 | 2 | 2 | Be | Beryllium | 9.012 | 105 | 2 | 1 | 1551 | 3750 | 1.85 |
5 | 2 | 13 | B | Boron | 10.81 | 85 | 3 | 2 | 2349 | 4200 | 2.46 |
6 | 2 | 14 | C | Carbon | 12.011 | 70 | 4 | 2 | 3820 | 5100 | 3.51 |
7 | 2 | 15 | N | Nitrogen | 14.007 | 65 | 5 | 2 | 63.1 | 77.4 | 1.17* |
8 | 2 | 16 | O | Oxygen | 15.999 | 60 | 6 | 3 | 54.4 | 90.2 | 1.33* |
9 | 2 | 17 | F | Fluorine | 18.998 | 50 | 7 | 1 | 53.5 | 85.0 | 1.58* |
10 | 2 | 18 | Ne | Neon | 20.180 | 38 | 8 | 3 | 24.6 | 27.1 | 0.84* |
Number | Period | Group | Symbol | Name | Mass | Radius | Valence el. | Stable isotopes | Melting point | Boiling point | Density |
11 | 3 | 1 | Na | Sodium | 22.990 | 180 | 1 | 1 | 371 | 1156 | 0.97 |
12 | 3 | 2 | Mg | Magnesium | 24.305 | 150 | 2 | 3 | 923 | 1380 | 1.74 |
13 | 3 | 13 | Al | Aluminium | 26.920 | 125 | 3 | 1 | 933 | 2740 | 2.70 |
14 | 3 | 14 | Si | Silicon | 28.085 | 110 | 4 | 3 | 1683 | 2628 | 2.33 |
15 | 3 | 15 | P | Phosphorus | 30.974 | 100 | 5 | 1 | 317 | 550 | 1.82 |
16 | 3 | 16 | S | Sulfur | 62.065 | 100 | 6 | 4 | 338 | 718 | 2.06 |
17 | 3 | 17 | Cl | Chlorine | 35.453 | 100 | 7 | 2 | 172 | 239 | 2.95* |
18 | 3 | 18 | Ar | Argon | 39.948 | 71 | 8 | 3 | 84 | 87 | 1.66* |
Number | Period | Group | Symbol | Name | Mass | Radius | Valence el. | Stable isotopes | Melting point | Boiling point | Density |
19 | 4 | 1 | K | Potassium | 39.098 | 220 | 1 | 2 | 337 | 1032 | 0.86 |
20 | 4 | 2 | Ca | Calcium | 40.078 | 280 | 2 | 4 | 1115 | 1757 | 1.54 |
21 | 4 | 3 | Sc | Scandium | 44.956 | 160 | 1 | 1814 | 3103 | 2.99 | |
22 | 4 | 4 | Ti | Titanium | 47.867 | 140 | 5 | 1941 | 3560 | 4.51 | |
23 | 4 | 5 | V | Vanadium | 50.942 | 135 | 1 | 2183 | 3680 | 6.09 | |
24 | 4 | 6 | Cr | Chromium | 51.996 | 140 | 3 | 2130 | 2945 | 7.14 | |
25 | 4 | 7 | Mn | Manganese | 54.938 | 140 | 1 | 1517 | 2235 | 7.44 | |
26 | 4 | 8 | Fe | Iron | 55.845 | 140 | 3-4 | 1808 | 3023 | 7.87 | |
27 | 4 | 9 | Co | Cobalt | 58.993 | 135 | 1 | 1768 | 3200 | 8.89 | |
28 | 4 | 10 | Ni | Nickel | 58.693 | 135 | 5 | 1738 | 3186 | 8.91 | |
29 | 4 | 11 | Cu | Copper | 63.456 | 135 | 2 | 1358 | 2840 | 8.92 | |
30 | 4 | 12 | Zn | Zinc | 65.39 | 135 | 5 | 693 | 1180 | 7.14 | |
31 | 4 | 13 | Ga | Gallium | 69.723 | 130 | 3 | 2 | 303 | 2477 | 5.91 |
32 | 4 | 14 | Ge | Germanium | 72.64 | 125 | 4 | 4 | 1211 | 3093 | 5.32 |
33 | 4 | 15 | As | Arsenic | 74.922 | 115 | 5 | 1 | 889 | 5.72 | |
34 | 4 | 16 | Se | Selenium | 78.96 | 115 | 6 | 5 | 494 | 958 | 4.82 |
35 | 4 | 17 | Br | Bromine | 79.904 | 115 | 7 | 2 | 266 | 332 | 3.14 |
36 | 4 | 18 | Kr | Krypton | 83.8 | 88 | 8 | 5 | 116 | 120 | 3.48* |
Number | Period | Group | Symbol | Name | Mass | Radius | Valence el. | Stable isotopes | Melting point | Boiling point | Density |
37 | 5 | 1 | Rb | Rubidium | 85.468 | 235 | 1 | 1 | 312 | 961 | 1.53 |
38 | 5 | 2 | Sr | Strontium | 87.62 | 200 | 2 | 4 | 1050 | 1655 | 2.63 |
39 | 5 | 3 | Y | Yttrium | 88.906 | 180 | 1 | 1799 | 3609 | 4.47 | |
40 | 5 | 4 | Zr | Zirconium | 91.224 | 155 | 4 | 2130 | 4682 | 6.51 | |
41 | 5 | 5 | Nb | Niob | 92.906 | 145 | 1 | 2750 | 5017 | 8.58 | |
42 | 5 | 6 | Mo | Molybdenum | 95.94 | 145 | 6 | 2896 | 4912 | 10.28 | |
43 | 5 | 7 | Tc | Technetium | 98 | 135 | 2430 | 5150 | 11.49 | ||
44 | 5 | 8 | Ru | Ruthenium | 101.07 | 130 | 7 | 2607 | 4423 | 12.45 | |
45 | 5 | 9 | Rh | Rhodium | 102.91 | 135 | 1 | 2273 | 3968 | 12.41 | |
46 | 5 | 10 | Pd | Palladium | 106.42 | 140 | 6 | 1828 | 3236 | 12.02 | |
47 | 5 | 11 | Ag | Silver | 107.87 | 160 | 2 | 1234 | 2435 | 10.49 | |
48 | 5 | 12 | Cd | Cadmium | 112.41 | 155 | ≥3 | 594 | 1040 | 8.64 | |
49 | 5 | 13 | In | Indium | 114.82 | 155 | 3 | 1 | 430 | 2345 | 7.31 |
50 | 5 | 14 | Sn | Tin | 118.71 | 145 | 4 | 10 | 505 | 2875 | 7.29 |
51 | 5 | 15 | Sb | Antimony | 121.76 | 145 | 5 | 2 | 904 | 1860 | 6.69 |
52 | 5 | 16 | Te | Tellurium | 127.6 | 140 | 6 | 4-5 | 723 | 1263 | 6.25 |
53 | 5 | 17 | I | Iodine | 126.90 | 140 | 7 | 1 | 387 | 457 | 4.94 |
54 | 5 | 18 | Xe | Xenon | 131.29 | 108 | 8 | 9 | 161 | 165 | 4.49* |
Number | Period | Group | Symbol | Name | Mass | Radius | Valence el. | Stable isotopes | Melting point | Boiling point | Density |
55 | 6 | 1 | Cs | Caesium | 132.90 | 260 | 1 | 1 | 302 | 944 | 1.90 |
56 | 6 | 2 | Ba | Barium | 137.33 | 215 | 2 | 7 | 1000 | 1913 | 3.65 |
57 | 6 | 3 | La | Lanthanum | 138.91 | 195 | 1 | 1193 | 3730 | 6.16 | |
58 | 6 | 3 | Ce | Cerium | 140.12 | 185 | 3 | 1068 | 3716 | 6.77 | |
59 | 6 | 3 | Pr | Praseodym | 140.91 | 185 | 1 | 1204 | 3793 | 6.48 | |
60 | 6 | 3 | Nd | Neodym | 144.24 | 185 | 5 | 1297 | 3373 | 7.00 | |
61 | 6 | 3 | Pm | Promethium | 145 | 185 | 1315 | 3273 | 7.22 | ||
62 | 6 | 3 | Sm | Samarium | 150.36 | 185 | 4 | 1345 | 2076 | 7.54 | |
63 | 6 | 3 | Eu | Europium | 151.96 | 185 | 2 | 1099 | 1800 | 6.16 | |
64 | 6 | 3 | Gd | Gadolinium | 157.25 | 180 | 6 | 1585 | 3523 | 7.89 | |
65 | 6 | 3 | Tb | Terbium | 158.92 | 175 | 1 | 1629 | 3503 | 8.25 | |
66 | 6 | 3 | Dy | Dysprosium | 162.5 | 175 | 7 | 1680 | 2840 | 8.56 | |
67 | 6 | 3 | Ho | Holmium | 163.93 | 175 | 1 | 1747 | 2963 | 8.78 | |
68 | 6 | 3 | Er | Erbium | 167.26 | 175 | 6 | 1795 | 2783 | 9.05 | |
69 | 6 | 3 | Tm | Thulium | 168.93 | 175 | 1 | 1818 | 2220 | 9.32 | |
70 | 6 | 3 | Yb | Ytterbium | 173.04 | 175 | 7 | 1097 | 1467 | 6.97 | |
71 | 6 | 3 | Lu | Lutetium | 174.97 | 175 | 1 | 1936 | 3668 | 9.84 | |
72 | 6 | 4 | Hf | Hafnium | 178.49 | 155 | 5 | 2506 | 4876 | 13.31 | |
73 | 6 | 5 | Ta | Tantalum | 180.95 | 145 | 1 | 3290 | 5731 | 16.68 | |
74 | 6 | 6 | W | Tungsten | 183.84 | 135 | 4 | 3695 | 5828 | 19.26 | |
75 | 6 | 7 | Re | Rhenium | 186.21 | 135 | 1 | 3459 | 5869 | 21.03 | |
76 | 6 | 8 | Os | Osmium | 190.23 | 130 | 6 | 3306 | 5285 | 22.61 | |
77 | 6 | 9 | Ir | Iridium | 192.22 | 135 | 2 | 2739 | 4701 | 22.65 | |
78 | 6 | 10 | Pt | Platinum | 195.08 | 135 | 4-5 | 2045 | 4100 | 21.45 | |
79 | 6 | 11 | Au | Gold | 196.97 | 135 | 1 | 1337 | 3129 | 19.32 | |
80 | 6 | 12 | Hg | Mercury | 200.59 | 150 | 7 | 234 | 630 | 13.55 | |
81 | 6 | 13 | Tl | Thallium | 204.38 | 190 | 3 | 2 | 577 | 1746 | 11.85 |
82 | 6 | 14 | Pb | Lead | 207.2 | 180 | 4 | 3 | 601 | 2023 | 11.34 |
83 | 6 | 15 | Bi | Bismuth | 208.98 | 160 | 5 | 544 | 1837 | 9.80 | |
84 | 6 | 16 | Po | Polonium | 209 | 190 | 6 | 527 | 1235 | 9.20 | |
85 | 6 | 17 | At | Astatine | 210 | 7 | 575 | 610 | |||
86 | 6 | 18 | Rn | Radon | 222 | 120 | 8 | 202 | 211 | 9.23* | |
Number | Period | Group | Symbol | Name | Mass | Radius | Valence el. | Stable isotopes | Melting point | Boiling point | Density |
87 | 7 | 1 | Fr | Francium | 223 | 1 | ~300 | ~950 | |||
88 | 7 | 2 | Ra | Radium | 226 | 215 | 2 | 973 | 2010 | 5.50 | |
89 | 7 | 3 | Ac | Actinium | 227 | 195 | 1327 | 3473 | 10.07 | ||
90 | 7 | 3 | Th | Thorium | 232.04 | 180 | 2028 | 5061 | 11.72 | ||
91 | 7 | 3 | Pa | Protactinium | 231.04 | 180 | 2113 | 4300 | 15.37 | ||
92 | 7 | 3 | U | Uranium | 238.03 | 175 | 1406 | 4203 | 18.97 | ||
93 | 7 | 3 | Np | Neptunium | 237 | 175 | 912 | 4175 | 20.48 | ||
94 | 7 | 3 | Pu | Plutonium | 244 | 175 | 913 | 3509 | 19.74 | ||
95 | 7 | 3 | Am | Americium | 243 | 175 | 1449 | 2880 | 13.67 | ||
96 | 7 | 3 | Cm | Curium | 247 | 1613 | 3383 | 13.51 | |||
97 | 7 | 3 | Bk | Berkelium | 247 | 1259 | 13.25 | ||||
98 | 7 | 3 | Cf | Californium | 251 | 1173 | 1743 | 15.1 | |||
99 | 7 | 3 | Es | Einsteinium | 252 | 1133 | |||||
100 | 7 | 3 | Fm | Fermium | 257 | 1800 | |||||
101 | 7 | 3 | Md | Mendelevium | 258 | 1100 | |||||
102 | 7 | 3 | No | Nobelium | 259 | 1100 | |||||
103 | 7 | 3 | Lr | Lawrencium | 262 | ||||||
104 | 7 | 4 | Rf | Rutherfordium | 267 | ||||||
105 | 7 | 5 | Db | Dubnium | 262 | ||||||
106 | 7 | 6 | Sg | Seaborgium | 266 | ||||||
107 | 7 | 7 | Bh | Bohrium | 264 | ||||||
108 | 7 | 8 | Hs | Hassium | 277 | ||||||
109 | 7 | 9 | Mt | Meitnerium | 268 | ||||||
110 | 7 | 10 | Ds | Darmstadtium | 281 | ||||||
111 | 7 | 11 | Rg | Roentgenium | 280 | ||||||
112 | 7 | 12 | Cp | Copernicium | 277 | ||||||
113 | 7 | 13 | Nh | Nihonium | ~287 | 3 | |||||
114 | 7 | 14 | Fl | Flerovium | 289 | 4 | |||||
115 | 7 | 15 | Mc | Moscovium | ~288 | 5 | |||||
116 | 7 | 16 | Lv | Livermorium | ~289 | 6 | |||||
117 | 7 | 17 | Ts | Tenessine | ~291 | 7 | |||||
118 | 7 | 18 | Og | Oganesson | 294 | 8 |
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