Question

What is the electronic configuration of Bromine?

Answer 1

Bromine(Br):

• Bromine is a p-block element having an atomic number 35.
• Bromine belongs to group 17 which is known as halogens.

Electronic configuration of Group 17:

• The elements of group 17 have seven electrons in their outermost shell.
• So, the valence electronic configuration of group 17 is $\text{n}{\mathrm{s}}^2\text{n}{\mathrm{p}}^5$.

Electronic configuration of Bromine:

• The electronic configuration of fluorine is $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^{2}3{\mathrm{p}}^{6}4{\mathrm{s}}^{2}3{\mathrm{d}}^{10}4{\mathrm{p}}^5$.
• It can be written as: $\left[\mathrm{Ar}\right]4{\mathrm{s}}^{2}3{\mathrm{d}}^{10}4{\mathrm{p}}^5$