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Both main metals have minor oxidative properties because they have low potential for oxidation:

Sn (91.5%) -0.14

Pb (3.2%) -0.13

Sn:Oxidation & Electrons

Shells: 2,8,18,18,4

Electron configuration: [Kr] 4d10 5s2 5p2

Minimum oxidation number: -4

Maximum oxidation number: 4

Min. common oxidation no.: 0

Max. common oxidation no.: 4

Electronegativity (Pauling Scale): 1.96

Polarizability volume: 7.7 Å3