Power Thesaurus 1969, governess thesaurus, Power Thesaurus, viewed 2 September, 2017, <http://www.powerthesaurus.org/governess/synonyms>.
The noble gases have weak interatomic force, and consequently have very low melting and boiling points. They are all monatomic gases under standard conditions, including the elements with larger atomic masses than many normally solid elements.
What are the properties of noble gases? Noble gases are the quiet ones, they are the least reactive on the  periodic table. Noble gases have completely filled orbitals /  energy levels. They generally have 8 valenâ¦ce electrons (helium has  only 2 valence electrons). Helium and neon have filled valence  shells. The noble gases have high ionization energies and stable  electronic configuration, so they have little tendency to gain or  lose electrons. Hence they are chemically inert and generally do  not form compounds under normal conditions.