Question

part a
which element is a molecular element?
lithium
iodine
krypton
copper
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Explanation:

Molecular elements are elements that exist as molecules. Iodine (\(I_2\)) is a diatomic molecule. Lithium (Li) is a metal that exists as a lattice of atoms. Krypton (Kr) is a noble gas that exists as single atoms. Copper (Cu) is a metal that exists as a lattice of atoms.

Answer:

iodine