Are Protons and Neutrons Fundamental Particles? (HSC SSCE Physics): Flashcards
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Fundamental particles
Fundamental particles
Particles that cannot be divided further
Standard Model
Standard Model
Describes fundamental constituents of universe
Why electrons are fundamental
Why electrons are fundamental
Behave as point charges with no internal structure
Evidence neutrons not fundamental
Evidence neutrons not fundamental
Have magnetic field despite no net charge
particles identity
particles identity
Electrons
particles identity
particles identity
Positrons (anti-electrons)
Annihilation process
Annihilation process
Particle meets antiparticle, both destroyed, energy released
Positron discoverer (1932)
Positron discoverer (1932)
Carl Anderson
Cloud chamber function
Cloud chamber function
Detects particles via ionisation of supersaturated vapour
Antiparticle properties
Antiparticle properties
Same mass, opposite charge and magnetic moment