Tin

Post-transition metal · 118.71 u · group 14, period 5

Tin · Sn

Atomic number50

SymbolSn

CategoryPost-transition metal

Standard stateSolid

Group · Period · Block14 · 5 · p

Electron configuration[Kr]5s2 4d10 5p2

Atomic mass118.71 u

Atomic radius217 pm

Protons / Neutrons / Electrons50 / 69 / 50

Shells (e⁻ per shell)2, 8, 18, 18, 4

Electronegativity (Pauling)1.96

Ionization energy7.344 eV

Electron affinity1.2 eV

Oxidation states+4, +2

Melting point505.1 K · 231.9 °C

Boiling point2.88e+3 K · 2.60e+3 °C

Density7.287 g/cm³

Year discoveredAncient

CPK color

#668080

State at room temp (25 °C)

solid

Position

1 in library