Question

Two elements p and q belong to the third period of the modern periodic table and are in the group in 1 and 2 respectively compare their characteristics in tabular form tge number of electron in their atoms, the sizes of their atoms , their metallic character , their tendencies to lose electron, the formula of their oxides, the formula of their chlorides

Answer 1

Answer:

Characteristics P Q

1. No. of electrons 11 12

2. Size of atoms Highest Less than P

in the period

3. Metallic Highest Less than P

Character in the period

4. Tendency to More due to Less due to

loose electrons only 1 e- in stable ns^2

valency shell state

5. Formula of P2O2 QO

oxide (peroxide)

6. Formula of PCl QCl2

chloride

●By observing the characteristics we can conform P & Q are Na and Mg respectively.

hope this will help you