PREVIOUSLY ASKED IN:
PSC Miscellaneous 2012
Answer
Loss or gain of electrons
Explanation
When a neutral atom loses electrons, a positive ion (cation) is formed, and when it gains electrons, a negative ion (anion) is formed.
Key Points
- > Ions are formed by the loss or gain of electrons.
- > Cations are formed by the loss of electrons.
- > Anions are formed by the gain of electrons.
Additional Information
- Electrons are negatively charged particles of an atom.
- Protons are positively charged particles.
- The electron configuration of the atom changes during ion formation.
| Subject | Detail |
|---|---|
| Cation | Loss of electrons |
| Anion | Gain of electrons |
| Key Particle | Electron |