Question

Which feature is unique to Group 18 nonmetals?(1 point)
Responses

They have more exceptions to reactivity rules.
They have more exceptions to reactivity rules.

They follow a different pattern of reactivity.
They follow a different pattern of reactivity.

They are very nonreactive.
They are very nonreactive.

They are very reactive.

1 answer

The feature that is unique to Group 18 nonmetals (noble gases) is:

They are very nonreactive.

Noble gases are known for their lack of reactivity due to having a full valence shell of electrons.