Bài 12.7 trang 30 SBT Hóa học 10

\(\begin{array}{l}
{X^ + }:1{s^2}2{{\rm{s}}^2}2{p^6} \to X:1{s^2}2{{\rm{s}}^2}2{p^6}3{s^1};Z = 11 \to X:Na\\
{Y^ - }:1{s^2}2{{\rm{s}}^2}2{p^6} \to Y:1{s^2}2{{\rm{s}}^2}2{p^5};{Z_Y} = 9\,\left( F \right)\\
M:1{s^2}2{{\rm{s}}^2}2{p^6} \to {Z_M} = 10\,\left( {Ne} \right)
\end{array}\)