the are located in group 18 and have such a lack of reactivity with other elements they are said to be…

the are located in group 18 and have such a lack of reactivity with other elements they are said to be \inert\.
Answer
Brief Explanations:
Group 18 elements of the periodic table are known as noble gases. They have a full - outer electron shell which makes them very stable and unreactive (inert).
Answer:
noble gases