An example of an atom that has no charge is one that has:

• A. an equal number of neutrons and electrons
• B. more electrons than neutrons
• C. more protons than electrons
• D. an equal number of protons and electrons

Answer: (D)

Verified step by step guidance

1. Recall that the overall charge of an atom depends on the balance between the number of protons (positively charged) and electrons (negatively charged).
2. Understand that neutrons have no charge, so they do not affect the atom's overall charge.
3. Identify that an atom with no charge (neutral atom) must have the number of protons equal to the number of electrons, so their charges cancel out.
4. Evaluate the given options: having equal neutrons and electrons does not guarantee neutrality, and having more electrons or more protons than the other will result in a charged ion.
5. Conclude that the correct condition for an atom with no charge is having an equal number of protons and electrons.