Q. The number of electrons present in Mg²⁺ ion is:
✅ Correct Answer: (A)
10
Explanation: Magnesium has atomic number 12. Mg²⁺ loses two electrons, so it contains 10 electrons.
Explanation by: Jyoti
Magnesium has atomic number 12. Mg²⁺ loses two electrons, so it contains 10 electrons.