JEE Main Chemistry question

Chemistry Classification of Elements and Periodicity in Properties JEE Main

The ionisation energy of the hydrogen atom is 13.6 eV. What will be the ionisation energy of ?

(A)13.6 eV
(B)54.4 eVCorrect
(C)122.4 eV
(D)Zero

Answer: (B)

Solution

Ionisation energy of a one-electron species . For (): .

Question ID VK-132212