Which of the following relation is correct with respect to first … - Vidyadip

MCQ

Which of the following relation is correct with respect to first $(I)$ and second $(II)$ ionization potentials of sodium and magnesium

A
${I_{Mg}} = I{I_{Na}}$
B
${I_{Na}} > {I_{Mg}}$
C
$I{I_{Mg}} > I{I_{Na}}$
✓
$I{I_{Na}} > I{I_{Mg}}$

✓

Answer

Correct option: D.

$I{I_{Na}} > I{I_{Mg}}$

d
After losing one electron sodium acquires stable noble gas configuration and thus second ionization potential of sodium is very large.

Therefore $II _{ Na }\,>\, II _{ Mg }$

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