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 called inert gas atoms. These are also known as noble gases and are characterized by their lack of reactivity due to having a full valence shell of electrons.

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