MCQ
For which of the following, the radius will same as for hydrogen atom having $n = 1$
- A$He^+, n = 2$
- B$Li^{+2}, n = 2$
- ✓$Be^{+3}, n = 2$
- D$Li^{+2}, n = 3$
✓
Answer
Correct option: C.
$Be^{+3}, n = 2$
c
${r_2},B{e^{ + 3}} = \frac{{{r_1}H}}{4} \times {\left( 2 \right)^2}$
${r_2},B{e^{ + 3}} = \frac{{{r_1}H}}{4} \times {\left( 2 \right)^2}$
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