Question

There are no transition elements between Group 2 element Magnesium and the Group 3 element aluminum. Give a reason why in terms of electronic structure.

Answer 1

Answer:

Magnesium has atomic number 12, its electronic configuration is

$$\begin{lgathered}Mg=1s^{2},2s^{2},2p^{6},3s^{2}\\ and that of Aluminum(Atomic number 13) is \\Al=1s^{2},2s^{2},2p^{6},3s^{2}\\3p^{1}\end{lgathered}$$

For an element to be transition d or f subshell must have the valence electron, as there is no such element here so it can be said that there is no transition element between these two elements.