Compare chemical elements
All chemical elements
|
Calcium
✕
|
| Symbol |
Ca |
| Atomic number |
20 |
| Chemical property |
Alkaline earth metal |
| Origin o the name |
the Latin calx, 'lime' |
| Group |
2 |
| Period |
4 |
| Atomic weight (u) |
40.078 |
| Atomic weight uncertainty (u) |
0.004 |
| Density (g/cm³) |
1.54 |
| Melting point (K) |
1115 |
| Boiling point (K) |
1757 |
| Heat capacity (J/(g·K)) |
0.647 |
| Electro-negativity |
1 |
| Abundance in earth's crust (mg/kg) |
41500 |