Question

Explain why:
Group IA elements are called Alkali metals.
Down the group, the atomic radii increases.
Across a period, the atomic radii decreases.
(iv)
Sodium is a metal while sulphur is a non-metal.
(v)
Sodium chloride is an ionic compound while carbon tetrachloride is
CIE
[Electronegativity values: Na = 0.9; C = 2.5;​

Answer 1

Answer:

Group 1A elements are called alkali metals because they are elements having high reactivity which form alkaline solutions when react with water