Question

which is the element.3rd period and 13th group​

Answer 1

● Answer -

Valence electrons => 3

Valency => +3

Compound name => Aluminum chloride

Compound formula => AlCl3

● Explanation -

Since element belongs to 3rd period and 13th group it must be Aluminum (Al).

Electronic configuration of element is roughly 2, 8, 3. Thus this element can lose 3 valence electrons and have valency +3.

Valency of X i.e. Al is 3 & that of Cl is 1. Thus compound formed is aluminum chloride (AlCl3).

Hope this helps you...