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