In the simplified model of subatomic particles, a proton has what type of electric charge?

• A. Positive
• B. Neutral (no charge)
• C. Variable, depending on the isotope
• D. Negative

Answer: (A)

Verified step by step guidance

1. Recall that subatomic particles include protons, neutrons, and electrons, each with distinct electric charges.
2. Understand that a proton is a particle found in the nucleus of an atom.
3. Remember the charge characteristics: electrons have a negative charge, neutrons have no charge (neutral), and protons have a positive charge.
4. Recognize that the charge of a proton does not vary with isotopes; isotopes differ in neutron number, not proton charge.
5. Conclude that the proton's electric charge is positive.