Atomic Properties
- Atomic Number
- 50
- Atomic Mass
- 118.7100 u
- Electron Configuration
- [Kr] 4d10 5s2 5p2
- Electronegativity
- 1.96
- Block
- p-block
- Group
- 14
- Period
- 5
Physical Properties
- Phase (STP)
- solid
- Melting Point
- 505.08 K
- Boiling Point
- 2875.00 K
- Density
- 7.2650 g/cm³
About Tin
Used since Bronze Age; used in solder, tin cans, and bronze alloys.
Why "Sn" for Tin?
Sn←Stannum(Latin)
The symbol Sn comes from "Stannum," the Latin word for tin. The English name "Tin" comes from Old English and Germanic origins, with cognates in several European languages.
Isotopes of Tin
Tin has 10 naturally occurring isotopes.
| Isotope | Mass Number | Atomic Mass (u) | Abundance | Type |
|---|---|---|---|---|
| 112Sn | 112 | 111.9048239 | 0.9700% | Stable |
| 114Sn | 114 | 113.9027827 | 0.6600% | Stable |
| 115Sn | 115 | 114.9033447 | 0.3400% | Stable |
| 116Sn | 116 | 115.9017428 | 14.54% | Stable |
| 117Sn | 117 | 116.902954 | 7.680% | Stable |
| 118Sn | 118 | 117.9016066 | 24.22% | Stable |
| 119Sn | 119 | 118.9033112 | 8.590% | Stable |
| 120Sn | 120 | 119.9022016 | 32.58% | Stable |
| 122Sn | 122 | 121.9034438 | 4.630% | Stable |
| 124Sn | 124 | 123.9052766 | 5.790% | Stable |
Data source: NIH PubChem (aggregated from IUPAC, NIST)