Atomic Structure 1 Question 45
21. The mass of a hydrogen is …… kg.
(1982, 1M)
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Answer:
Correct Answer: 21. $\left(1.66 \times 10^{-27} \mathrm{~kg}\right)$ $\mathrm{A} \rightarrow \mathrm{r} ; \mathrm{B} \rightarrow \mathrm{q} ; \mathrm{C} \rightarrow \mathrm{p}, \mathrm{D} \rightarrow \mathrm{s}$
Solution:
- Mass of one $\mathrm{H}$-atom $=\frac{10^{-3}}{6.023 \times 10^{23}} \mathrm{~kg}=1.66 \times 10^{-27} \mathrm{~kg}$
