Charges of Subatomic Particles

Steps:

• Recall that atoms consist of protons, neutrons, and electrons as subatomic particles.
• Identify charges: protons carry a positive charge, electrons a negative charge, neutrons no charge.
• Compare options to these charges to find the matching pair.
• Select the option that correctly pairs positive with proton and negative with electron.

Why A is correct:

• Protons are positively charged (+1) and electrons negatively charged (-1), as defined in atomic structure by the laws of electrostatics.

Why the others are wrong:

• B: Electrons are negative, not positive; protons are positive, not negative.
• C: Neutrons have no charge, so they are neither positive nor negative.
• D: Neutrons have no charge, and protons are positive, not negative.

Final answer: A