Tin (Sn)
Stannum
Tin (Sn) is a post-transition metal in period 5, group 14. Its relative atomic mass is 118.71 and the molar mass of the atom is 118.71 g/mol.
Atomic number 50
Atomic mass 118.71
Molar mass 118.71 g/mol
Category Post-transition metal Solid
Properties of tin
| Atomic number | 50 |
|---|---|
| Symbol | Sn |
| Latin name | Stannum |
| Relative atomic mass | 118.71 |
| Molar mass | 118.71 g/mol |
| Group, period, block | 14, 5, p |
| Category | Post-transition metal |
| State at 20 °C | Solid |
| Electron configuration | [Kr] 4d¹⁰ 5s² 5p² |
| Electronegativity (Pauling) | 1.96 |
| Atomic radius | 145 pm |
Electron configuration of tin
Electrons per shell
K2L8M18N18O4
Full notation
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p²
Noble-gas notation
50 protons · 50 electrons[Kr] 4d¹⁰ 5s² 5p²
Formula and compounds of tin
Simple substanceSntinMolar mass of Sn: 118.71 g/mol
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Frequently asked questions
The relative atomic mass of tin is 118.71, so the molar mass of the atom is 118.71 g/mol.
Full: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p². Noble-gas notation: [Kr] 4d¹⁰ 5s² 5p².