For Li^ +2 ion, r_2 : r_5 will be - Vidyadip

MCQ

For $Li^{+2}$ ion, $r_2 : r_5$ will be

A
$9 : 25$
✓
$4 : 25$
C
$25 : 4$
D
$25 : 9$

✓

Answer

Correct option: B.

$4 : 25$

b
$\frac{{{r_2}}}{{{r_5}}} = \frac{{{{(2)}^2}}}{{{{(5)}^2}}} = \frac{4}{{25}}$

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