A) 25
B) 50
C) 100
D) \[100\times 6\times {{10}^{-23}}\]
Correct Answer: A
Solution :
\[\therefore \] \[4u=1\,\text{He}\,\,\text{atom}\] \[1\,u-\frac{1}{4}\text{He}\,\,\text{atom}\] \[\therefore \] \[100\,u=\frac{1\times 100}{4}=25\,\,\text{atoms}\]You need to login to perform this action.
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