If first ionization enthalpies of elements X and Y are 419 kJ mol$-$1 and 590 kJ mol$-$1, respectively and second ionization enthalpies of X and Y are 3069 kJ mol$-$1 and 1145 kJ mol$-$1, respectively. Then correct statement is :

Question

If first ionization enthalpies of elements X and Y are 419 kJ mol^$-$1 and 590 kJ mol^$-$1, respectively and second ionization enthalpies of X and Y are 3069 kJ mol^$-$1 and 1145 kJ mol^$-$1, respectively. Then correct statement is :

Both X and Y are alkaline earth metals

X is an alkali metal and Y is an alkaline earth metal

X is an alkaline earth metal and Y is an alkali metal

Both X and Y are alkali metals

Solution

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