Question

which statement is true when a crystal is formed from many metal atoms?
there are no bands being formed.
there are many molecular orbitals.
there are only unshared atomic orbitals.
there are many electrons lost to other atoms.

Explanation:

When metal atoms form a crystal, according to the band - theory, a large number of molecular orbitals are formed due to the combination of atomic orbitals of a large number of metal atoms. Bands are formed by these molecular orbitals. Metal atoms do not only have unshared atomic orbitals in the crystal - forming process, and there is no general situation of a large number of electrons being lost to other atoms in the process of crystal formation in terms of this description.

Answer:

There are many molecular orbitals.