Question

bonds quick check
metallic bonds are responsible for many properties of metals, such as conductivity. why is this possible? (1 point)
metals have low electronegativity, so they are conductive because they pass charges easily.
the bonds can shift because valence electrons are held loosely and move freely.
an attraction between a positive charge and a negative charge is created.
two metals bonded together are going to be more conductive than a metal bonded with a nonmetal

Explanation:

In metallic bonding, valence electrons are delocalized and move freely. This allows the bonds to shift and enables the conduction of electricity. The other options do not accurately explain the conductivity due to metallic bonds. Low electronegativity doesn't directly explain conductivity in terms of metallic - bonding mechanism. The creation of a positive - negative charge attraction is a general concept not specific to metallic - bond conductivity. And the comparison of metal - metal vs metal - nonmetal bonds is not relevant to why metallic bonds themselves cause conductivity.

Answer:

The bonds can shift because valence electrons are held loosely and move freely.