Answer
Please see the work below.
Work Step by Step
a)
The atomic number of Al = 13
The correct electronic configuration of Aluminum = $1s^{2}2s^{2}2p^{6}3s^{2}3p^{1}$
b)
The atomic number of B = 5
The correct electronic configuration of Boron = $1s^{2}2s^{2}2p^{1}$
c)
The atomic number of F = 9
The correct electronic configuration of Fluorine = $1s^{2}2s^{2}2p^{5}$
