lagonlon| Nomor atom (Z) | = | jumlah proton |
| = | 7 | |
| Nomor massaa (A) | = | jumlah proton + jumlah neutron |
| = | 7 + 7 | |
| = | 14 | |
| muatan | = | jumlah proton - jumlah elektron |
| = | 7 - 10 | |
| = | - 3 | |
| 14 | X3- |
| 7 |
| Nomor atom (Z) | = | jumlah proton |
| = | 6 | |
| Nomor massaa (A) | = | jumlah proton + jumlah neutron |
| = | 6 + 6 | |
| = | 12 | |
| muatan | = | jumlah proton - jumlah elektron |
| = | 6 - 6 | |
| = | 0 | |
| 12 | Y |
| 6 |
| Nomor atom (Z) | = | jumlah proton |
| = | 12 | |
| Nomor massaa (A) | = | jumlah proton + jumlah neutron |
| = | 12 + 12 | |
| = | 24 | |
| muatan | = | jumlah proton - jumlah elektron |
| = | 12 - 10 | |
| = | + 2 | |
| 24 | Z2+ |
| 12 |
| X | : | ion negatif |
| Y | : | atom netral |
| Z | : | ion positif |
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