JEE Main 2019 Chemistry question

ChemistryStructure of AtomJEE Main 2019

The ground state energy of hydrogen atom is −13.6 eV. The energy of second excited state of He ion in eV is:

Answer: (A)

Solution

n = 3: −13.6 × 4/9 = −6.04 eV.

Question ID VK-010603