1.56 x 1023
1.56 x 1022
3.6 x 1023
3.6 x 1022
Correct answer is B
23g of sodium contain 6 x 1023 atoms :. 0.6g of sodium will contain \(\frac{0.6 x 6 x 1023}{23}/) = 1.56 x 1022
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