What is the ground-state electron configuration of a neutral atom of iodine?

1 Answer
Jun 14, 2018

Well, for iodine...Z=53...

Explanation:

Why is the atomic number significant for this question...

The number of protons, is EQUAL to the number of electrons in the NEUTRAL atom...and so we follow the usual "Aufbau scheme.."

underbrace(1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^(2)3d^(10)4p^(6)5s^(2)4d^(10)5p^5)_"53 electrons as required..."