The Composition of Atoms Quick Check

3 of 53 of 5 Items
Question
Why are the noble gases the least reactive elements?(1 point)
Responses

A. They have the same number of electrons as protons.

B. They are the last elements in each row on the periodic table.

C. They are all radioactive.

D. Their outer most energy levels are complete with 8 electrons.

1 answer

The correct response is:

D. Their outer most energy levels are complete with 8 electrons.

Noble gases are considered the least reactive elements because their outer electron shell is full, which makes them stable and less likely to form chemical bonds with other elements.