Q80 · CSIR-NET Chemistry, June 2014

Paper: CSIR-NET June 2014 · Subject: Physical Chemistry · Chapter: Quantum Chemistry · Topic: Quantum Chemistry – General · Marks: 2 · Difficulty: Easy

If the ionization energy of H atom is x , the ionization energy of $\mathrm{Li}^{2+}$ is

(a)2x

(b)3 x

(c)$9 x$

(d)27x

Answer

Answer: C ✓ checked by 4AB · confidence high

The source book printed no answer; this one was worked out and checked — see the explanation.

Explanation

For the hydrogen-like Li²⁺ ion the ionisation energy scales as Z²: 9x.

Study loop for Quantum Chemistry

1. Practise the PYQsPrevious-year questions, with answers

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