The text-only table is a version of the Huge Table designed for printing atomic mass data. Colors representing chemical series have been removed, and all links have been removed. The least significant digit has been dropped if its uncertainty is greater than 1. Rounding was performed in these cases. The Huge Table is a detailed periodic table that does not fit into most computer screens. ... A chemical series is a group of chemical elements whose physical and chemical characteristics vary progressively from one end of the series to another. ... Significant figures (also called significant digits and abbreviated sig figs or sig digs, respectively) is a method of expressing errors in measurements. ...
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 14.0067
oxygen 8 O 15.999
fluorine 9 F 18.998403
neon 10 Ne 20.180
3
sodium 11 Na 22.98977
magnesium 12 Mg 24.305
aluminium 13 Al 26.98154
silicon 14 Si 28.086
phosphorus 15 P 30.97376
sulfur 16 S 32.07
chlorine 17 Cl 35.453
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 54.93805
iron 26 Fe 55.84
cobalt 27 Co 58.93320
nickel 28 Ni 58.693
copper 29 Cu 63.55
zinc 30 Zn 65.4
gallium 31 Ga 69.723
germanium 32 Ge 72.6
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 95.94
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 131.3
6
caesium 55 Cs 132.9054
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 196.9666
mercury 80 Hg 200.6
thallium 81 Tl 204.383
lead 82 Pb 207.2
bismuth 83 Bi 208.9804
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]
89-103 **
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]
roentgenium 111 Rg [272.1535]
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 [293]***
* Lanthanides
lanthanum 57 La 138.906
cerium 58 Ce 140.116
praseodymium 59 Pr 140.9076
neodymium 60 Nd 144.2
promethium 61 Pm [144.9127]
samarium 62 Sm 150.4
europium 63 Eu 151.964
gadolinium 64 Gd 157.2
terbium 65 Tb 158.9253
dysprosium 66 Dy 162.5
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 [227.0277]
thorium 90 Th 232.0381
protactinium 91 Pa 231.0359
uranium 92 U 238.0289
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]
lawrencium 103 Lr [262.110]
*** These atomic masses are only estimates
Periodic tables The periodic table of the chemical elements, also called the Mendeleev periodic table, is a tabular display of the known chemical elements. ...
The periodictable of the chemical elements is a tabular method of displaying the chemical elements, first devised in 1869 by the Russian chemist Dmitri Mendeleev.
The periodictable is now ubiquitous within the academic discipline of chemistry, providing an extremely useful framework to classify, systematize and compare all the many different forms of chemical behavior.
A period is a horizontal row in the periodictable of the elements.
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