Show Elements
| ID | 13 |
|---|---|
| Symbol | Ca |
| Image | |
| Name | Calcium |
| Density (g/cm<sup>3</sup>) | 1.55 |
| Atomic Number | 20 |
| Molecular Weight | 40 |
| Melting Point (K) | 1115 |
| Boiling Point (K) | 1757 |
| Specific Heat Capacity (J/kg K) | 631 |
| Electro Negativity | 1 |
| Curie temperature (K) | |
| Bohr Magneton (J/T) | |
| Magnetization Saturation (MA m<sup>-1</sup>) | |
| Crystal Structure | Face-centred cubic (fcc) |
| Appearance | Dull gray, silver |
| Element category | Alkaline earth metal |
| Magnetic ordering | Paramagnetic |
| Discovery | In The United Kingdom (1808) |
| General Information | Calcium is a chemical element with the symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. |
| Image source | https://cdn.britannica.com/80/22380-050-56F1E872/Calcium-earth-metal-symbol-square-Ca-properties.jpg |
| General informations source | https://www.rsc.org/periodic-table/element/20/calcium |