Tin – Sn, on is found in the fourteenth column of the periodic table Group IVB this is the second column of the p block. Tin is in the fifth energy level (row).
This means that Tin must end with an of ##5p^2##
The total electron configuration would be
##1s^2 2s^2 2P^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^2##
The noble gas Krypton has an electron configuration of
##1s^2 2s^2 2P^6 3s^2 3p^6 4s^2 3d^10 4p^6##
So we can replace this portion of tin’s electron configuration with the noble gas notation [Kr]
This makes the electron configuration for Tin – Sn
##[Kr] 5s^2 4d^10 5p^2##
I hope this was helpful.
SMARTERTEACHER
