Compare Elements
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Ca
Calcium
#20 · Alkaline Earth Metal
| Mass | 40.078 u |
| Density | 1.55 g/cm³ |
| Melting | 1115.0 K |
| Boiling | 1757.0 K |
| Electronegativity | 1.0 |
| Ionization Energy | 589.8 kJ/mol |
| Atomic Radius | 197.0 pm |
| Block | s-block |
| State (RT) | Solid |
| Config | [Ar] 4s2 |