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Nuclei

Question

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the ionization energy of Li²⁺ is equal to

9hcR

6hcR

2hcR

hcR

Solution

A.

9hcR

Ionization energy is the energy necessary to remove an electron from the neutral atom.

Ionization energy = RchZ²

Z = 3 for Li²⁺

∴ Iionization energy = ( 3 )² Rch

= 9Rch

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