Metallic bonds are responsible for many properties of metals, such as conductivity. Why is this possible?
1) An attraction between a positive charge and a negative charge is created.
2) Two metals bonded together are going to be more conductive than a metal bonded with a nonmetal.
3 )Metals have low electronegativity, so they are conductive because they pass charges easily.
4) The bonds can shift because valence electrons are held loosely and move freely.
4) The bonds can shift because valence electrons are held loosely and move freely.
The correct answer is:
4) The bonds can shift because valence electrons are held loosely and move freely.
In metallic bonds, the valence electrons of metal atoms are delocalized and can move freely throughout the metal lattice. This delocalization allows the electrons to easily carry electric charge, resulting in high electrical conductivity in metals. In addition, the loosely held valence electrons also contribute to the high thermal conductivity and malleability of metals.