Em tham khảo nha:
2)
\(\begin{array}{l}
a)\\
\% {}_1^2H = 100 - 99,984 = 0,016\% \\
\overline {{M_H}} = 99,984\% \times 1 + 0,016\% \times 2 = 1,00016\\
\% {}_{17}^{37}Cl = 100 - 75,53 = 24,47\% \\
\overline {{M_{Cl}}} = 35 \times 75,53\% + 37 \times 24,47\% = 35,4894\\
b)\\
{}_1^1H{}_{17}^{35}Cl\\
{}_1^1H{}_{17}^{37}Cl\\
{}_1^2H{}_{17}^{35}Cl\\
{}_1^2H{}_{17}^{37}Cl
\end{array}\)
