bonds form when two metals bond together. covalent hydrogen ionic metallic

Brief Explanations:

Covalent bonds form between non - metals by sharing electrons. Hydrogen bonds are intermolecular forces between a hydrogen atom bonded to a highly electronegative atom and another electronegative atom. Ionic bonds form between a metal and a non - metal through electron transfer. Metallic bonds form when two or more metals bond together due to the delocalization of electrons in a sea of electrons.

Answer:

Metallic