The vertical columns of the periodic table are called
A)groups.
B)periods.
C)triads.
D)elements.

Question

Quizplus · Accepted Answer

The vertical columns of the periodic table are called groups or families. These groups contain elements with similar chemical and physical properties. The elements within a group have the same number of valence electrons, which determines their reactivity and the types of chemical reactions they can undergo. The periodic table is arranged into 18 groups or columns.

The Vertical Columns of the Periodic Table Are Called