Tin

Post-transition metal · atomic number 50

50118.7107SnTinSolidPost-transition metal

Tin is a chemical element with the symbol Sn (for Latin:stannum) and atomic number 50. It is a main group metal in group 14 of the periodic table. Tin shows a chemical similarity to both neighboring group-14 elements, germanium and lead, and has two possible oxidation states, +2 and the slightly more stable +4.

Properties of Tin

Element category	Post-transition metal
Atomic number	50
Atomic mass	118.7107 u
Phase at STP	Solid
Group	14
Period	5
Block	p
Electron configuration	[Kr] 4d10 5s2 5p2
Electrons per shell	2, 8, 18, 18, 4
Electronegativity (Pauling)	1.96
Melting point	505.08 K (232 °C)
Boiling point	2875 K (2602 °C)
Density	7.365 g/cm3
Discovered by	unknown, before 3500 BC

← Indium · Periodic table · Antimony → Sb

About the post-transition metal group

Softer, lower-melting metals beside the transition block — aluminium, tin, lead — abundant in cans, foils, solders and pigments.

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9 elements: Softer, lower-melting metals beside the transition block — aluminium, tin, lead — abundant in cans, foils, solders and pigments.

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