A) \[\frac{r}{9}\]
B) \[\frac{r}{3}\]
C) 3r
D) 9r
Correct Answer: B
Solution :
Formula for radius of H-like species, \[{{r}_{n}}=0.529\times \frac{{{n}^{2}}}{Z}\overset{o}{\mathop{A}}\,\]where, 0.529 \[\overset{o}{\mathop{A}}\,\] is the Bohr radius of H-atom n = principle quantum number, Z = atomic number So, \[{{r}_{n}}=\frac{r}{3}(\because n=1,\,z=3forL{{i}^{2+}})\]You need to login to perform this action.
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