Which of the following diagrams
best represents metallic bonding?
The diagram that accurately
represents metallic bonding will be the one that has a lattice of positive ions with
a sea of delocalized electrons. Answer (B) is the correct answer,
as it represents the red positive ions in the form of a lattice as well as the sea
of delocalized electrons, the black dots floating in the space between.
Choice (C) has a lattice of
positive ions as well, but there are negative ions mixed into this lattice. Choice (C) depicts ionic
bonding. Choice (A) depicts hydrogen bonding
that occurs between the hydrogen atoms and the oxygen atoms of water molecules. The diagram in choice (D) depicts
network covalent bonding. In this specific case, it depicts
the repeated arrangement of carbon atoms to form diamond. So, the diagram that best
represents metallic bonding is choice (B).