Which of the following statements correctly differentiates a neutral atom from an ion?

• A. A neutral atom has no charge, while an ion has a positive charge only.
• B. A neutral atom has equal numbers of protons and electrons, while an ion has unequal numbers.
• C. A neutral atom has more protons than electrons, while an ion has equal numbers.
• D. A neutral atom has more electrons than protons, while an ion has more protons.

Answer: (B)