Đáp án + giải thích các bước giải:
\begin{array}{|c|c|c|}\hline \text{Kim loại}&\text{Tên kim loại}\\\hline \text{K}&\text{Kali}\\\hline \text{Na}&\text{Natri}\\\hline \text{Ba}&\text{Bari}\\\hline \text{Ca}&\text{Canxi}\\\hline\text{Mg}&\text{Magiê}\\\hline\text{Al}&\text{Nhôm}\\\hline\text{Zn}&\text{Kẽm}\\\hline\text{Fe}&\text{Sắt}\\\hline\text{Cu}&\text{Đồng}\\\hline\text{Ag}&\text{Bạc}\\\hline\end{array}
