Each horizontal row on the periodic table is called a
A)period
B)family
C)group
D)cohort

Question

Quizplus · Accepted Answer

A horizontal row on the periodic table is called a period. It represents the number of electron shells that an element has. Each period starts with an alkali metal and ends with a noble gas. The periodic table is arranged in such a way that elements with similar chemical and physical properties are placed in the same vertical column or group.

Each Horizontal Row on the Periodic Table Is Called a