Indium Antimony

Tin (Sn)

From Wikipedia, the free encyclopediaTin 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.

Tin in the periodic table

Symbol

Atomic number

Group

Period

Block

Element category

Post-Transition Metal

Physical properties

Phase at STP

Solid

Density

7.365 g/cm³

Atomic weight

118.711 u

Melting point

505.08 K
231.93 °C
449.474 °F

Boiling point

2875 K
2601.85 °C
4715.33 °F

Atomic properties

Electronegativity (Pauling Scale)

1.96

Electron affinity

107.298 kJ/mol

Oxidation states

−4, −3, −2, −1, 0, +1, +2, +3, +4
(an amphoteric oxide)

Ionization energies

1	708.6 kJ/mol
2	1411.8 kJ/mol
3	2943 kJ/mol
4	3930.3 kJ/mol
5	7456 kJ/mol

Electron configuration

Elektronkonfiguration (shorthand)

[Kr] 4d¹⁰ 5s² 5p²

Electron configuration

1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p²

Electrons per shell

2, 8, 18, 18, 4

History

Discovered

-3500

Discovered by

Asia Minor