Tag Archives: carbon family First Ionisation






Physical Property Of Carbon Family

PROPERTY ELEMENT C Si Ge Sn Pb Atomic number 6 14 32 50 82 Atomic mass 12.01 28.09 72.60 118.71 207.2 Covalent radius/pm 77 118 122 140 146 Ionic radius / pm (M4+) – 40 53 69 78 Ionic radius / pm (M2+) – – 73 118 119 First Ionisation energy kj mol-1 1086 786

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