Question

In the periodic table, the period number indicates

A. the number of dots shown on the Lewis dot diagrams for elements in that period.
B. the number of valence electrons for elements in that period.
C. the reactivity levels for elements in that period.
D. the number of the outermost energy level for elements in that period.

Answer 1

A. the number dots shown on the lewis dot diagrams for the element in the period

Answer 2

D. the number of outermost energy level for elements in that period.