Question

The number of valence electrons in a sulphide ion, S^2–, is :

Options

• 16

• 10

• 9

• 8

Answer 1

8
Atomic number of a sulphur atom S is 16. It has 6 electrons in its outermost orbit. After gaining 2 electrons it becomes S²⁻. So, now the outermost orbit will have 8 electrons.