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Question
What is the difference between:
A cation and an anion
Solution
| Cations | Anions | |
| (1) | They are positively charged ions. | They are negatively charged ions. |
| (2) | Migrate to the cathode during electrolysis. | Migrate to the anode during electrolysis. |
| (3) | Gain electron(s) from the cathode and get reduced to become a neutral atom. | Lose electrons to the anode and get oxidised to become a neutral atom. |
| (4) | Examples: Na+, Ca2+, Al3+ | Examples: \[\ce{PO^3-_4}\], Cl−, \[\ce{SO^2-_4}\], OH− |
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