What does the period number indicate on periodic table

Question

Chemistry

Brennen Maddox

3 June, 15:25

What does the period number indicate on periodic table

+1

Answers (2)

Know the Answer?

Savannah Gross · Answer 1

It’s atomic mass is what the number means.

Glenn Chung · Answer 2

The period number indicates what electron shell level is being filled. For example, Magnesium is the second element in the third period, which means that there are two electrons in the third shell, assuming that it is neutral.