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| 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) |
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| 2 | lithium 3 Li 6,941(2) |
beryllium 4 BeBeryllium is the chemical element in the periodic table that has the symbol Be and atomic number 4. A toxic bivalent element, beryllium is a steel grey, strong, light-weight yet brittle, alkaline earth metal, that is primarily used as a hardening agent in 9.012182(3) |
boron 5 BBoron is the chemical element in the periodic table that has the symbol B and atomic number 5. A trivalent metalloid element, boron occurs abundantly in the ore borax. There are two allotropes of boron; amorphous boron is a brown powder, but metallic boro 10.881(7) |
carbon 6 CAlternative meaning: Carbon (computing Carbon is a chemical element in the periodic table that has the symbol C and atomic number 6. An abundant nonmetallic, tetravalent element, carbon has several allotropic forms: diamonds (hardest known mineral). Bindi 12.0107(8) |
nitrogen 7 NNitrogen is the chemical element in the periodic table that has the symbol N and atomic number 7. A common normally colorless, odorless, tasteless and mostly inert diatomic non-metal gas, nitrogen constitutes 78 percent of Earth's atmosphere and is a cons 14.00674(7) |
oxygen 8 OOxygen is the chemical element in the periodic table that has the symbol O and atomic number 8. The element is very common, found not only on Earth but throughout the universe. Molecular oxygen (O, often called free oxygen on Earth is thermodynamically un 15.9994(3) |
fluorine 9 FFluorine (from L. Fluere meaning "to flow"), is the chemical element in the periodic table that has the symbol F and atomic number 9. It is a poisonous pale yellow, univalent gaseous halogen that is the most chemically reactive and electronegative of all 18.9984032(5) |
neon 10 NeThis page is about the chemical element. For the automobile, see Dodge Neon. For a new semiconductor technology see ARM Neon is the chemical element in the periodic table that has the symbol Ne and atomic number 10. A colorless nearly inert noble gas, neo 20.1797(6) |
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| 3 | sodium 11 NaSodium is the chemical element in the periodic table that has the symbol Na Natrium in Latin) and atom number 11. Sodium is a soft, waxy, silvery reactive metal belonging to the alkali metals that is abundant in natural compounds (especially halite). 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) |
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| 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) |
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| 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) |
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| 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] |
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 138.9055(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 |
| Poor metals | Metalloids | Nonmetals | Halogens | Noble gases |
| Standard table | Vertical table | Table with names | Names and atomic masses (large) | Names and atomic masses (small) | Inline F-block | Elements to 218 | Electron configurations | Metals and non metals | Table by blocks |
| Lists of Elements |
| Name | Atomic symbol | Atomic number | Boiling point | Melting point | Density | Atomic mass
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| Group | Period | Series | Block |
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