Question

Plz solve these questions​

Answer 1

2.i)[Ne] 3s¹

ii)Ne 3s2

III)[Ne] 3s² 3p³

iv)[Ne] 3s² 3p⁵

v)[Ar] 4s¹

vi)[He] 2s2 2p3

vii)[He] 2s2 2p5

3.The combining capacity of an atom is known as its valency.

Sorry I don't know 1,4 and 5