Question

Moder periodic table with valency

Answer 1

Bro aapko kis element ki valency janni hai,        waise group 1 ke elements ki valency +1 hoti hai aur group 2 ke elements ki valency  +2 hoti hai.

Answer 2

$\huge{\mathbb{HEY \ MATE}}$

$\huge\bold{\blue{ANSWER}}$