Tin
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.
A stylized shell model. Electrons are quantum objects, not particles following these literal paths. Sizes and motion are illustrative.
36 is the [Kr] core total across four shells.
At a glance
- Atomic number
- 50
- Atomic mass
- 118.7107 u
- Phase
- Solid
- Density
- 7.365 g/cm³
- Melting point
- 505.08 K
- Boiling point
- 2,875 K
- First ionization energy
- 708.6 kJ/mol
- Electronegativity
- 1.96
- Electron affinity
- 107.2984 kJ/mol
- Molar heat capacity
- 27.112 J/(mol·K)
- Period
- 5
- Appearance
- silvery-white (beta, β) or gray (alpha, α)
Conditions and isotopes affect measured properties. Some properties of short-lived elements are predicted. Electronegativity uses the Pauling scale.
Keep exploring
Explore the stories, imagery, and reference data in more depth. Properties with no value in the reference are marked unavailable.