Question

$C^{4-}$ is unstable because it would be very difficult for 6 protons to hold 10 electrons.

• A. True
• B. False

Answer 1

The correct option is A True

In a case of $C^{4-}$, the number of electrons in the outermost shell will be 8. Thus, the total number of electrons including 2 electrons in the inner shell will be 10. But the number of protons still remains the same, i.e., 6. Hence, it becomes difficult for 6 protons to hold 10 electrons.