JEE Main Chemistry question

Chemistry Structure of Atom JEE Main

Binding energy of a hydrogen atom is 13.6 eV. The binding energy of a singly ionised helium atom is:

(A)13.6 eV
(B)27.2 eV
(C)54.4 eVCorrect
(D)3.4 eV

Answer: (C)

Solution

Binding energy scales as for one-electron species; for (): .

Question ID VK-132843