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Which subatomic particle carries a positive charge?
AThe positron
BThe proton
CThe neutron
DThe electron
Answer & Solution
Correct answer: B. The proton
1. An atom's charge comes from the balance of its charged particles.
2. A proton is positively charged whereas a neutron is uncharged.
3. Electrons carry the negative charge that balances the protons.
4. So the positive charge belongs to the proton.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 2 'The Chemical Foundation of Life', sections 2.1-2.3_
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