Question

For each, give the total number of electrons, the number of valence electrons, and the number of the energy level that holds the valence electrons.

Br-35 electrons--7 valence--4th level
Kr-36 electrons--8 valence--4th level
As-33 electrons--5 valence--4th level
I-53 electrons--7 valence--5th level

Answer 1

These look ok to me.