Why is group 18 on the periodic table a nonreactive group?

Answer 1

Noble gases have completely filled orbitals. They generally have 8 valence electrons (helium has only 2) and have stable electronic configuration. Hence they are chemically inert and generally donot form compounds under normal conditions.

Answer 2

Elements of group 18, the noble gasses, have full valence shells, which means they have all the electrons they need to fill the outermost shell. Because of this they are not inclined to either give up or take in electrons and are therefore stable. Stable elements are unlikely to react.

Answer 3

Group 18, also known as the noble gases, is nonreactive because they have a full outer electron shell, making them highly stable. This full shell does not readily gain or lose electrons, making them unreactive with other elements. Their stable electron configuration makes them unlikely to form chemical bonds with other elements.

Answer 4

Their outermost energy level is full.
Because they have the outer electron shell full, with 8 electrons; this structure lead to a very low chemical reactivity.

Answer 5

Because the outer shell of valence electrons is full.

Answer 6

they are combined to form molecules

Answer 7

because. :P

Answer 8

ghg