The group of atoms at the ends of periods of the periodic table are called:
A) alkali metals
B) rare earths
C) transition metal atoms
D) alkaline atoms
E) inert gas atoms

Question

Quizplus · Accepted Answer

The group of atoms at the ends of periods of the periodic table are the noble gases or inert gases. They are called inert gases because they have complete outer electron shells and are therefore very unreactive.

The Group of Atoms at the Ends of Periods of the Periodic