7. What causes some metallic bonds to be stronger than others? A. the number of donated valence electrons

B. the number of metallic bonds

C. the fineness of the metal

D. the number of metal ions

the number of donated valence electrons

Explanation:

  A metallic bond is formed when atoms come together in a metallic crystal lattice.

The metal atoms are usually ionized such that in a metallic crystal lattice consists of metal ions and a sea of mobile electrons. Attraction between these positively charged ions and the sea of electrons constitutes the metallic bond.

Hence, the more the number of donated valence electrons, the stronger the metallic bond.

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