Question

write the formula of the product formed when the element A(atomic number 19)combine with the element B (atomic number 17) .Draw its electronic dot structure .what is the nature of the bond formed ?​

Answer 1

Answer:

A has electronic configuration - 2,8,7.

It has 3 shells or orbits so it is placed in period 3.

It has 7 electrons in the outermost shell it is placed in group VII  A

B has electronic configuration - 2,8,8,1.

It Has 4 shells or orbits so it is placed in period 4

It Has 1 electron in its outermost shell so it is placed in group I A

A is Cl 1- And B is K 1+

2K + Cl ⇒ 2 KCl

            ²

Electron Dot Structure In The Diagram i uploaded

Since it Is Giving And Taking Of Electrons bond present between them is ionic bond.

Answer 2

Answer:

k + cl---->kcl

k has valency 1 and chlorine has valency 1

and due to strong electrostatic force they are form ionic bond with the elements

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