Question

which property is true for metals? localized electrons high electronegativity low ionization energies tightly held valence electrons

Explanation:

Metals have relatively low ionization energies as they tend to lose electrons easily to form positive - ions. Their electrons are delocalized (not localized), they have low electronegativity (tend to give up electrons rather than attract them), and their valence electrons are not tightly held but are free to move in the metal lattice.

Answer:

low ionization energies