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Kalsium
KalsiumMuat turun aplikasi Kimia untuk melihat maklumat lanjut tentang unsur kimia:
| Nombor atom | 20 |
| Kumpulan | IIA |
| Kala | 4 |
| Jisim | 40.078 |
| Nama latin | Calcium |
| Konfigurasi elektron | [Ar]4s2 |
| Keadaan pengoksidaan | 0, 1, 2 |