Compare four properties of alkali metals and alkali earth metals.

Explanation

`{:("Alkali metals", "Alkali earth metals"),(i. "The show + 1 oxidation state", i. "They show + 2 oxidation state"),(ii."They are soft metals",ii. "They are harder than alkali metals"),(iii. "They do not form compleses excep Li", iii. "They can form complex compound"),(iv. "Their carbonates are soluble in water except "Li_(2) CO_(3), iv "Their carbonates are insoluble water"):}`