Rows in the Periodic Table correspond to:
A)the number of protons in the nucleus
B)the number of neutrons in the nucleus
C)the number of electron shells
D)the atomic weight
E)all of these

Question

Rows in the Periodic Table correspond to: 
A)the number of protons in the nucleus 
B)the number of neutrons in the nucleus 
C)the number of electron shells 
D)the atomic weight 
E)all of these

Quizplus · Accepted Answer

Rows in the Periodic Table correspond to the number of electron shells. Each row represents a new energy level or shell that electrons can occupy. The number of protons in the nucleus and atomic weight increase from left to right within a row, but these factors do not determine the row itself. Similarly, the number of neutrons in the nucleus is not related to the row. Therefore, option C is the correct choice.

Rows in the Periodic Table Correspond To