Why are noble gases nonreactive?

Answer 1

This is because they have a complete valence shell.
Noble gases are closer to being stable in terms of their electrons than other elements, thus making them less inclined to react with other elements.

Answer 2

Noble gases have completely filled orbitals / energy levels. 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 3

Noble gases have complete outer electron shells, making them stable and nonreactive. This full outer electron shell results in a lack of tendency to gain, lose, or share electrons, which are necessary for chemical reactions to occur. As a result, noble gases typically do not form compounds with other elements.

Answer 4

noble gases are non reactive because their number of electrons and number of protons are in equilibrium, so in other words they are considered happy. they neither loose or want any electrons.