How should nanotechnology be regulated?

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

Which factor is likely to impact the possible number of compounds ?