The outer electronic configuration of alkaline earth metals is:

Bleaching powder is obtained by the reaction of chlorine gas with ........

What are the products formed when an aqueous solution of magnesium bicarbonate is boiled?

Which of the following compounds has a lattice enthalpy lower than its hydration enthalpy?

Which of the following properties of the alkaline earth metals increase from $Be$ to $Ba$?
$(i)$ Atomic radius
$(ii)$ Ionisation energy
$(iii)$ Nuclear charge

$A$ metal $M$ readily forms a water-soluble sulphate and a water-insoluble hydroxide $M(OH)_2$. Its oxide $MO$ is amphoteric,hard,and has a high melting point. The alkaline earth metal $M$ must be