The word covalent is not adequate for these gases.
Metals form cations by the complete transfer of electrons. Metalloids and some noble gases generally form covalent bonds
The covalent bond is an intramolecular bond.An example of compound having covalent bonds is carbon dioxide - CO2.
Covalent bonding
Noble gases do not react chemically with other noble gases.
inert gases / noble gases
noble gases have larger radius than cations.
Noble gases already have a full valence shell.
Almost any element, including most of the noble gases, can form covalent bonds, but non-metallic elements other than the noble gases form the most.
Metals, metalloids, and noble gases.
Metals form cations by the complete transfer of electrons. Metalloids and some noble gases generally form covalent bonds
The covalent bond is an intramolecular bond.An example of compound having covalent bonds is carbon dioxide - CO2.
Noble gases can't have a metallic, ionic or covalent bonds because their outer shells are full, therefore they are stable. They are gases because their molecules are far apart, causing its gaseous phase.
Covalent bonding
Elements , with the exception of the noble gases which are monoatomic, are either covalent (solids eg diamond, liquid, bromine, gases, e.g. oxygen and nitrogen ) or metals and therefore element's contain covalent or metallic bonds.
Noble gases do not normally form compounds.
Each of the Noble gases. They don't bond with anything.
Noble gases do not react chemically with other noble gases.