Question

The potential energy of an electron in a h atom is -6.8eV . In which excited state , the electron is present???​

Answer 1

Explanation:

potential energy of an electron is -13.6 × Z2/n

where z is atomic no. and n is shell no.

- 6.8 = -13.6 ×1/n (z = 1)

n = 2

the electron is present in 2nd shell