Chemistry - Elements With Their Valence


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  • The following table illustrates significant elements and their valence −

Element Valence Symbol Atomic No.
Hydrogen -1, +1 H 1
Helium 0 He 2
Lithium 1 Li 3
Beryllium 2 Be 4
Boron 3, 2, 1 B 5
Carbon -1, -2, -4, 4, 3, 2, 1, C 6
Nitrogen 0, -1, -2, -3,0, 5, 4, 3, 2, 1, N 7
Oxygen -1, -2, 0, 2, 1, O 8
Fluorine -1, 0 F 9
Neon 0 Ne 10
Sodium -1, 1 Na 11
Magnesium 2 Mg 12
Aluminum 3, 1 Al 13
Silicon -1, -2, -4, 4, 3, 2, 1 Si 14
Phosphorus -1, -2, -3, 0, 5, 4, 3, 2, 1 P 15
Sulfur -1, -2, 0, 6, 5, 4, 3, 2, 1 S 16
Chlorine -1, -2, 0, 6, 5, 4, 3, 2, 1 Cl 17
Argon 0 Ar 18
Potassium -1, 1 K 19
Calcium 2 Ca 20
Scandium 3, 2, 1 Sc 21
Titanium -1, -2, 0, 4, 3, 2, Ti 22
Vanadium -1, -2, 0, 5, 4, 3, 2, 1 V 23
Chromium -1, -2, -3, -4, 0, 6, 5, 4, 3, 2, 1 Cr 24
Manganese -1, -2, -3, 0, 7, 6, 5, 4, 3, 2, 1 Mn 25
Iron -1, -2, 0, 6, 5, 4, 3, 2, 1 Fe 26
Cobalt -1, 0, 5, 4, 3, 2, 1 Co 27
Nickel -1, 0, 6, 4, 3, 2, 1 Ni 28
Copper 4, 3, 2, 1, 0 Cu 29
Zinc 2, 1, 0 Zn 30
Gallium 3, 2, 1 Ga 31
Germanium 4, 3, 2, 1 Ge 32
Arsenic -3, 5, 3, 2, As 33
Selenium -2, 6, 4, 2, 1 Se 34
Bromine -1, 0, 7, 5, 4, 3, 1 Br 35
Krypton 2, 0 Kr 36
Rubidium -1, 1 Rb 37
Strontium 2 Sr 38
Yttrium 3, 2 Y 39
Zirconium 0, -2, 4, 3, 2, 1 Zr 40
Niobium -1, -3, 0, 5, 4, 3, 2, 1 Nb 41
Molybdenum -1, -2, 0, 6, 5, 4, 3, 2, 1 Mo 42
Technetium -1, -3, 0, 7, 6, 5, 4, 3, 2, 1 Tc 43
Ruthenium -2, 0, 8, 7, 6, 5, 4, 3, 2, 1 Ru 44
Rhodium -1, 0, 6, 5, 4, 3, 2, 1 Rh 45
Palladium 4, 2, 0 Pd 46
Silver 3, 2, 1, 0 Ag 47
Cadmium 2, 1 Cd 48
Indium 3, 2, 1 In 49
Tin -4, 4, 2 Sn 50
Antimony -3, 5, 3 Sb 51
Tellurium -2, 6, 5, 4, 2, 1 Te 52
Iodine -1, 0, 7, 5, 3, 1 I 53
Xenon 8, 6, 4, 3, 2, 0 Xe 54
Cesium -1, 1 Cs 55
Barium 2 Ba 56
Lanthanum 3, 2 La 57
Cerium 4, 3, 2 Ce 58
Praseodymium 4, 3, 2 Pr 59
Neodymium 4, 3, 2 Nd 60
Promethium 3 Pm 61
Samarium 3, 2 Sm 62
Europium 3, 2 Eu 63
Gadolinium 3, 2, 1 Gd 64
Terbium 4, 3, 1 Tb 65
Dysprosium 4, 3, 2 Dy 66
Holmium 3, 2 Ho 67
Erbium 3 Er 68
Thulium 3, 2 Tm 69
Ytterbium 3, 2 Yb 70
Lutetium 3 Lu 71
Hafnium 4, 3, 2, 1 Hf 72
Tantalum -1, -3, 5, 4, 3, 2, 1 Ta 73
Tungsten -1, -2, -4, 0, 6, 5, 4, 3, 2, 1 W 74
Rhenium -1, -3, 0, 7, 6, 5, 4, 3, 2, 1 Re 75
Osmium -2, 0, 8, 7, 6, 5, 4, 3, 2, 1 Os 76
Iridium -1, 0, 6, 5, 4, 3, 2, 1 Ir 77
Platinum 6, 5, 4, 2, 0 Pt 78
Gold -1, 0, 7, 5, 3, 2, 1 Au 79
Mercury 2, 1 Hg 80
Thallium 3, 1 Tl 81
Lead 4, 2 Pb 82
Bismuth -3, 5, 3, 1 Bi 83
Polonium -2, 6, 4, 2 Po 84
Astatine -1, 7, 5, 3, 1 At 85
Radon 2, 0 Rn 86
Francium 1 Fr 87
Radium 2 Ra 88
Actinium 3 Ac 89
Thorium 4, 3, 2 Th 90
Protactinium 5, 4, 3 Pa 91
Uranium 6, 5, 4, 3, 2 U 92
Neptunium 7, 6, 5, 4, 3, 2 Np 93
Plutonium 7, 6, 5, 4, 3, 2 Pu 94
Americium 7, 6, 5, 4, 3, 2 Am 95


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