Question

Calculate 2nd excitation energy of Li+ ion

Answer 1

Explanation:

Li has 3 electrons. Li

2+

has one electron. It is a hydrogen-like atom. In the first excited state, the electron is in 2s orbital.

Its energy is E

n

=−13.6

n

2

Z

2

eV/atom.

E

2

=−13.6

2

2

3

2

=−30.6eV/atom