And is Nu Metal really dying?
Metal have delocalized valance electrons. With other atoms we look at the s and p orbitals mostly but with metals we also take into consideration the d block electrons in metals these can be bonding electrons to form complex ions When thinking about conductivity and metals picture the atoms in a organized crystal structure with the electrons moving freely between the lattice work, This sea of electrons that are delocalized make it easy for metals to conduct both heat and electricity.