| Group | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| I | II | III | IV | V | VI | VII | VIII | ||||||||||||
| Period | |||||||||||||||||||
| 1 | hydrogen 1 H 1.00794(7) |
helium 2 He 4.002602(2) |
|||||||||||||||||
| 2 | lithium 3 Li 6,941(2) |
beryllium 4 Be 9.012182(3) |
boron 5 B 10.881(7) |
carbon 6 C 12.0107(8) |
nitrogen 7 N 14.00674(7) |
oxygen 8 O 15.9994(3) |
fluorine 9 F 18.9984032(5) |
neon 10 Ne 20.1797(6) |
|||||||||||
| 3 | sodium 11 Na 22.989770(2) |
magnesium 12 Mg 24.3050(6) |
aluminium 13 Al 26.981538(2) |
silicon 14 Si 28.0855(3) |
phosphorus 15 P 30.973761(2) |
sulfur 16 S 32.066(6) |
chlorine 17 Cl 35.4527(9) |
argon 18 Ar 39.948(1) |
|||||||||||
| 4 | potassium 19 K 39.0983(1) |
calcium 20 Ca 40.078(4) |
scandium 21 Sc 44.955910(8) |
titanium 22 Ti 47.867(1) |
vanadium 23 V 50.9415(1) |
chromium 24 Cr 51.9961(6) |
manganese 25 Mn 54.938049(9) |
iron 26 Fe 55.845(2) |
cobalt 27 Co 58.933200(9) |
nickel 28 Ni 58.6934(2) |
copper 29 Cu 63.546(3) |
zinc 30 Zn 65.39(2) |
gallium 31 Ga 69.723(1) |
germanium 32 Ge 72.61(2) |
arsenic 33 As 74.92160(2) |
selenium 34 Se 78.96(3) |
bromine 35 Br 79.904(1) |
krypton 36 Kr 83.80(1) |
|
| 5 | rubidium 37 Rb 85.4678(3) |
strontium 38 Sr 87.62(1) |
yttrium 39 Y 88.90585(2) |
zirconium 40 Zr 91.224(2) |
niobium 41 Nb 92.90638(2) |
molybdenum 42 Mo 95.94(1) |
technetium 43 Tc [97.9072] |
ruthenium 44 Ru 101.07(2) |
rhodium 45 Rh 102.90550(2) |
palladium 46 Pd 106.42(1) |
silver 47 Ag 107.8682(2) |
cadmium 48 Cd 112.411(8) |
indium 49 In 114.818(3) |
tin 50 Sn 118.710(7) |
antimony 51 Sb 121.760(1) |
tellurium 52 Te 127.60(3) |
iodine 53 I 126.90447(3) |
xenon 54 Xe 131.29(2) |
|
| 6 | caesium 55 Cs 132.90545(2) |
barium 56 Ba 137.327(7) |
* |
lutetium 71 Lu 174.967(1) |
hafnium 72 Hf 178.49(2) |
tantalum 73 Ta 180.9479(1) |
tungsten 74 W 183.84(1) |
rhenium 75 Re 186.207(1) |
osmium 76 Os 190.23(3) |
iridium 77 Ir 192.217(3) |
platinum 78 Pt 195.078(2) |
gold 79 Au 196.96655(2) |
mercury 80 Hg 200.59(2) |
thallium 81 Tl 204.3383(2) |
lead 82 Pb 207.2(1) |
bismuth 83 Bi 208.98038(2) |
polonium 84 Po [208.9824] |
astatine 85 At [209.9871] |
radon 86 Rn [222.0176] |
| 7 | francium 87 Fr [223.0197] |
radium 88 Ra [226.0254] |
** |
lawrencium 103 Lr [262.110] |
rutherfordium 104 Rf [263.1125] |
dubnium 105 Db [262.1144] |
seaborgium 106 Sg [266.1219] |
bohrium 107 Bh [264.1247] |
hassium 108 Hs [269.1341] |
meitnerium 109 Mt [268.1388] |
darmstadtium 110 Ds [272.1463] |
unununium 111 Uuu [272.1535] |
ununbium 112 Uub [277] |
ununtrium 113 Uut [287]*** |
ununquadium 114 Uuq [289] |
ununpentium 115 Uup [288]*** |
ununhexium 116 Uuh [289] |
ununseptium 117 Uus [291]*** |
ununoctium 118 Uuo [293] |
| * Lanthanides | lanthanum 57 La 138.9055(2) |
cerium 58 Ce 140.116(1) |
praseodymium 59 Pr 140.90765(2) |
neodymium 60 Nd 144.24(3) |
promethium 61 Pm [144.9127] |
samarium 62 Sm 150.36(3) |
europium 63 Eu 151.964(1) |
gadolinium 64 Gd 157.25(3) |
terbium 65 Tb 158.92534(2) |
dysprosium 66 Dy 162.50(3) |
holmium 67 Ho 164.93032(2) |
erbium 68 Er 167.26(3) |
thulium 69 Tm 168.93421(2) |
ytterbium 70 Yb 173.04(3) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ** Actinides | actinium 89 Ac [227.0277] |
thorium 90 Th 232.0381(1) |
protactinium 91 Pa 321.03588(2) |
uranium 92 U 238.0289(1) |
neptunium 93 Np [237.0482] |
plutonium 94 Pu [244.0642] |
americium 95 Am [243.0614] |
curium 96 Cm [247.0703] |
berkelium 97 Bk [247.0703] |
californium 98 Cf [251.0796] |
einsteinium 99 Es [252.0830] |
fermium 100 Fm [257.0951] |
mendelevium 101 Md [258.0984] |
nobelium 102 No [259.1011] |
| Alkali metals | Alkaline earths | Lanthanide | Actinides | Transition metals |
| Other metals | Metalloids | Nonmetals | Halogens | Noble gases |