Question

explain why are the following statements not correct :
(ii)Atoms of elements in the same group have the same number of electron(s).
(iii)Non-Metallic character decreases across a period with increase in atomic number.

Answer 1

Corrected statements :

i) Atoms of elements in the same group have the same number of valence electrons.

ii) Non-Metallic character increases across a period with increase in atomic number.