1. Physical and mechanical properties of tin
1.1 Atomic and crystalline properties
— Atomic number 50.
— Atomic mass 118.7.
— Mean atomic radius 0.158 nm.
— Ion rays Sn2+ 0.093 nm and Sn4+ 0.074 nm.
— Electronic configuration of the ground-state atom: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p2.
— Allotropic varieties and structures :
white tin (β) quadratic (face-centered) system: density ρ = 7.29 g /cm3 ;
gray tin (α) cubic system (< 13.2°C): ρ = 5.77 g /cm3.
we also find a β ® γ transformation (orthorhombic system) above 161°C,...
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Physical and mechanical properties of tin
Chemical properties of tin
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