Kohlenstoff ∙ carbone ∙ carbonio ∙ carbono
group IV: RH4, RO2
- melting point: 3825°C (Sublimes)
- boiling point: 4827°C
- density: 3.51 g/cm³
⚒ minerals:
Graphite C
Calcite CaC=3
The three main contributors to the committed effective dose [from global fallout] received by the world population are carbon-14 (70%), cesium-137 (13%) and strontium-90 (3%). — radioactivity.eu.com
☢ radioisotopes:
C-14 (T1/2=5700 a) cosmogenic, activation product