If the radius of Al( A=27, Z=13 ) nucleus is taken to be RAl, then the radius of Te 125 53 Te53125 nucleus is near.

 Question:  From NCERT  | NEET 2015   || [Difficult level:Easy] Subtopic:13.3 Size of the Nucleus || 

If the radius of Al( A=27, Z=13 )  nucleus is taken to be RAl, then the radius of 

${\mathrm{Te}}_{53}^{125}$ nucleus is near.

1. ${\left(\frac{53}{13}\right)}^{\frac{1}{3}}{R}_{\mathrm{Al}}$

2. $\frac{5}{3}{R}_{\mathrm{Al}}$

3. $\frac{3}{5}{R}_{\mathrm{Al}}$

4. $\left(\frac{13}{53}\right)R_{\mathrm{Al}}$

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NCERT Snapshot: 

It has been found that a nucleus of mass number A has a radius

R = R0 A1/3  

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