Atom
- Name
- Calcium
- IUPAC name
- Calcium
- InChI
- InChI=1S/Ca
- InChI key
- OYPRJOBELJOOCE-UHFFFAOYSA-N
- CAS number
- 7440-70-2
- Comments
- natural Ca - 96.9% 40Ca + 2.1% 44Ca + 0.65% 42Ca + 0.19% 48Ca + 0.13% 43Ca
- Symbol
- Ca
- Formula
- $Ca$
- Charge
- 0
- Atomic number Z
- 20
- Molar mass
- 40.078 $g/mol$
- State STP
- solid
- Electronegativity
- 1.0
- Isotope mixture type
- terrestrial abundance
| Type | K | L1 | L2 | L3 | M1 |
|---|---|---|---|---|---|
| Energy (keV) | 4.0381 | 0.4378 | 0.35 | 0.3464 | 0.0443 |