A) \[6.64\times {{10}^{-23}}u\]
B) \[40.0u\]
C) \[\frac{1}{40}u\]
D) \[6.64u\]
Correct Answer: B
Solution :
Mass of one atom \[=6.64\times {{10}^{-23}}g\] Atomic mass\[=6.64\times {{10}^{-23}}\times 6.02\times {{10}^{23}}\] \[=40.0u\]
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