Em tham khảo nha:
\(\begin{array}{l}
Z = 8:1{s^2}2{s^2}2{p^4}\\
Z = 16:1{s^2}2{s^2}2{p^6}3{s^2}3{p^4}\\
Z = 19:1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^1}\\
Z = 23:1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}3{d^3}4{s^2}\\
Z = 26:1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}3{d^6}4{s^2}\\
Z = 30:1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}3{d^{10}}4{s^2}\\
Z = 35:1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}3{d^{10}}4{s^2}4{p^5}\\
Z = 37:1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}3{d^{10}}4{s^2}4{p^6}5{s^1}
\end{array}\)
