Answer the following question given this paragraph: 

Nonmetals tend to gain electrons in chemical reactions and have a high attraction to electrons within a compound. The most reactive nonmetals reside in the upper right portion of the periodic table. Since the noble gases are an unusually unreactive group, the element fluorine is the most reactive nonmetal. It is also not found in nature as a free element. Fluorine gas reacts explosively with many other elements and compounds and is considered to be one of the most dangerous known substances.


Q: What group of gases are unusually unreactive?

 Choices:

- volcanic gases

- greenhouse gases

- halogens

- noble gases

A:
noble gases
