The numbers of protons, neutrons, and electrons in four different particles, A, B, C, and D, are shown in the table below.
| Particle | Protons | Neutrons | Electrons |
|---|---|---|---|
| A | 11 | 12 | 10 |
| B | 18 | 22 | 18 |
| C | 8 | 8 | 10 |
| D | 6 | 6 | 6 |
Explain which particle, A, B, C, or D, is a negative ion.
