Antiproton:
* Charge: Negative (-1)
* Spin: 1/2 (fermion)
* Mass: 1.6726 × 10^-27 kg (same as proton)
* Composition: Composite particle made up of three antiquarks (two anti-up and one anti-down)
* Interaction: Participates in strong, weak, and electromagnetic interactions.
* Stability: Unstable, usually annihilates with a proton, releasing energy.
Electron:
* Charge: Negative (-1)
* Spin: 1/2 (fermion)
* Mass: 9.10938356 × 10^-31 kg (much smaller than proton)
* Composition: Elementary particle (not made of smaller components)
* Interaction: Participates in electromagnetic and weak interactions (not in strong interaction)
* Stability: Stable, no known decay
Key Differences:
* Mass: Antiprotons are much heavier than electrons.
* Composition: Antiprotons are composite particles, while electrons are elementary particles.
* Strong Interaction: Antiprotons participate in the strong interaction, while electrons do not.
* Stability: Antiprotons are unstable, while electrons are stable.
In summary: While both have negative charge and spin, antiprotons are much heavier, composite particles that interact strongly and are unstable. Electrons are much lighter, elementary particles that do not interact strongly and are stable.
