Answer: Covalent
Explanation:-
Hydrogen bonding is formed by bonding between hydrogen and an electronegative element such as flourine, oxygen and nitrogen.
Covalent bonds are formed by sharing of electrons between non metals.
Ionic bonds are formed by transfer of electrons between metal and non metals.
Metallic bonding is the type of chemical bonding which occurs between the atoms of a metals.In this type of bonding arises due to electrostatic interaction between the electron cloud of de-localized electrons with positively charges metal ions.
