Question
How does a metal react with a nonmetal?
✓
Answer
By oxidation of a metal, cations are formed, on the other hand by reduction of a nonmetal, anions are formed. The ionic compound is formed due to the metal losing electrons while the nonmetal accepts the electrons. The ionic compound of sodium chloride is formed as sodium loses one electron while chlorine accepts one electron.
$
\begin{aligned}
& Na \rightarrow Na ^{+}+ e ^{-} \\
& Cl + e ^{-} \rightarrow Cl ^{-} \\
& \overline{ Na + Cl \rightarrow NaCl } \text { Sodium chloride } \\
&
\end{aligned}
$
Similarly $Mg$ and $K$ form ionic compounds $MgCl _2$ and $KCl$.
$
\begin{aligned}
& Na \rightarrow Na ^{+}+ e ^{-} \\
& Cl + e ^{-} \rightarrow Cl ^{-} \\
& \overline{ Na + Cl \rightarrow NaCl } \text { Sodium chloride } \\
&
\end{aligned}
$
Similarly $Mg$ and $K$ form ionic compounds $MgCl _2$ and $KCl$.
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