Question

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

They are very nonreactive.
They are very nonreactive.

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

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

They are very reactive.

Answers

GPT-4o mini
The unique feature of Group 18 nonmetals is:

**They are very nonreactive.**

Group 18 elements, also known as noble gases, are known for their lack of reactivity due to having a full valence shell of electrons.