The columns of the periodic table divide atoms by their_____________ .
A) number of valence electrons
B) number of neutrons
C) atomic mass
D) number of protons

Question

Quizplus · Accepted Answer

The columns of the periodic table, also known as groups or families, divide atoms based on their number of valence electrons, which determines their chemical properties and reactivity.

The Columns of the Periodic Table Divide Atoms by Their_____________