Question

Sodium and potassium are placed same group in periodic table. if the molecular formula of sodium sulphate is na2so4. then write the molecular formula of potassium sulphate. and justify your answer

Answer 1

Answer:

K2SO4

Explanation:

Sodium and Potassium belong to the same group in the Modern Periodic Table. We know that, the elements belonging to the same group have same outer electronic configuration,i.e., the same number of valence electrons in their outermost shell. That's why, they (Sodium and Potassium) have the same valency and hence react with sulphate ion {(SO4)2-} to form compounds with similar molecular structure.

Hope it helps :)