Elements in the same period have the same ___________?

Question

asked Feb 4, 2020 11.8k views

1 Answer

Nisansali Nikapotha · Answer 1 · 2020-02-10T16:38:47+0000

Answer:

number of energy levels

Step-by-step explanation:

for example hydrogen and helium are in period 1 and they have 1 energy level