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 1.0079 |
helium 2 He 4.00260 | ||||||||||||||||
2 | lithium 3 Li 6.94 |
beryllium 4 Be 9.01218 |
boron 5 B 10.81 |
carbon 6 C 12.011 |
nitrogen 7 N 14.007 |
oxygen 8 O 15.999 |
fluorine 9 F 18.998403 |
neon 10 Ne 20.180 | ||||||||||
3 | sodium 11 Na 22.9897693 |
magnesium 12 Mg 24.305 |
aluminium 13 Al 26.981539 |
silicon 14 Si 28.086 |
phosphorus 15 P 30.97376 |
sulfur 16 S 32.06 |
chlorine 17 Cl 35.45 |
argon 18 Ar 39.948 | ||||||||||
4 | potassium 19 K 39.0983 |
calcium 20 Ca 40.08 |
scandium 21 Sc 44.95591 |
titanium 22 Ti 47.867 |
vanadium 23 V 50.9415 |
chromium 24 Cr 51.996 |
manganese 25 Mn 54.93804 |
iron 26 Fe 55.84 |
cobalt 27 Co 58.93320 |
nickel 28 Ni 58.693 |
copper 29 Cu 63.55 |
zinc 30 Zn 65.41 |
gallium 31 Ga 69.723 |
germanium 32 Ge 72.64 |
arsenic 33 As 74.9216 |
selenium 34 Se 79.0 |
bromine 35 Br 79.904 |
krypton 36 Kr 83.80 |
5 | rubidium 37 Rb 85.468 |
strontium 38 Sr 87.62 |
yttrium 39 Y 88.9058 |
zirconium 40 Zr 91.22 |
niobium 41 Nb 92.9064 |
molybdenum 42 Mo 95.9 |
technetium 43 Tc [97.9072] |
ruthenium 44 Ru 101.1 |
rhodium 45 Rh 102.9055 |
palladium 46 Pd 106.42 |
silver 47 Ag 107.868 |
cadmium 48 Cd 112.41 |
indium 49 In 114.82 |
tin 50 Sn 118.71 |
antimony 51 Sb 121.760 |
tellurium 52 Te 127.6 |
iodine 53 I 126.9045 |
xenon 54 Xe 131.29 |
6 | caesium 55 Cs 132.905452 |
barium 56 Ba 137.33 |
57-71 * |
hafnium 72 Hf 178.5 |
tantalum 73 Ta 180.9479 |
tungsten 74 W 183.84 |
rhenium 75 Re 186.207 |
osmium 76 Os 190.2 |
iridium 77 Ir 192.22 |
platinum 78 Pt 195.08 |
gold 79 Au 196.96657 |
mercury 80 Hg 200.6 |
thallium 81 Tl 204.383 |
lead 82 Pb 207.2 |
bismuth 83 Bi 208.98040 |
polonium 84 Po [208.9824] |
astatine 85 At [209.9871] |
radon 86 Rn [222.0176] |
7 | francium 87 Fr [223] |
radium 88 Ra [226] |
89-103 ** |
rutherfordium 104 Rf [261] |
dubnium 105 Db [262] |
seaborgium 106 Sg [266] |
bohrium 107 Bh [264] |
hassium 108 Hs [277] |
meitnerium 109 Mt [268] |
darmstadtium 110 Ds [271] |
roentgenium 111 Rg [272] |
ununbium 112 Uub [277] |
ununtrium 113 Uut [284] |
ununquadium 114 Uuq [289] |
ununpentium 115 Uup [288] |
ununhexium 116 Uuh [292] |
ununseptium 117 Uus [291]*** |
ununoctium 118 Uuo [294]*** |
* Lanthanides | lanthanum 57 La 138.9055 |
cerium 58 Ce 140.116 |
praseodymium 59 Pr 140.9076 |
neodymium 60 Nd 144.24 |
promethium 61 Pm [145] |
samarium 62 Sm 150.4 |
europium 63 Eu 151.964 |
gadolinium 64 Gd 157.2 |
terbium 65 Tb 158.9254 |
dysprosium 66 Dy 162.500 |
holmium 67 Ho 164.9303 |
erbium 68 Er 167.26 |
thulium 69 Tm 168.9342 |
ytterbium 70 Yb 173.0 |
lutetium 71 Lu 174.967 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
** Actinides | actinium 89 Ac [227] |
thorium 90 Th 232.0381 |
protactinium 91 Pa 231.0359 |
uranium 92 U 238.0289 |
neptunium 93 Np [237] |
plutonium 94 Pu [244] |
americium 95 Am [243] |
curium 96 Cm [247] |
berkelium 97 Bk [247] |
californium 98 Cf [251] |
einsteinium 99 Es [252] |
fermium 100 Fm [257] |
mendelevium 101 Md [258] |
nobelium 102 No [259] |
lawrencium 103 Lr [262] |