Question

which of the following is an example of an atom? * 1 point
○ hydrogen
○ ocean water
○ sodium chloride
○ a cup of mixed fruit

Explanation:

To determine the example of an atom, we analyze each option:

• Hydrogen: A hydrogen atom is the simplest atom, consisting of one proton and (usually) one electron. It is a single atom (or can exist as a diatomic molecule, but the atom itself is hydrogen).
• Ocean water: A mixture of water, salts, and other substances, not an atom.
• Sodium chloride: A compound made of sodium and chlorine ions, not an atom.
• A cup of mixed fruit: A mixture of different fruits, not an atom.

So hydrogen is the example of an atom.

Answer:

A. hydrogen