Question

Two elements P and Q belong to the 3rd period of the modern periodic table and are in

Group-1 and Group -2 respectively. Compare their following characteristics in tabular

form

i. The number of electrons in their atom

ii. The size of their atoms

iii. The metallic characters

iv. Their tendencies to loose electrons

v. The formula of their oxides

vi. The formula of their halid​

Answer 1

Answer:

elements of 3rd period in the groups 1 ,2 are Na , Mg

Explanation:

now you can compare them