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Radioactivity and Elementary Particles

Foundation of Quantum Theory Critical Knowledge. Dual nature of light (waves

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Radioactivity and Elementary Particles

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    1. Radioactivity and Elementary Particles Introduction to Quantum Theory Building blocks of matter

    2. Foundation of Quantum Theory Critical Knowledge Dual nature of light (waves & particles properties) Electromagnetic Spectrum Spectral Analysis Rutherford’s Model of Atom Radioactivity Photoelectric effect

    5. Subatomic particles Proton - subatomic particle with positive charge e+. The mass of the proton is 1,836 times the mass of the electron. Protons are made up of quarks. Proton was discovered as a product of the disintegration of the atomic nucleus. Proton belongs to a class of baryons which are made up of three quarks. Proton is also a hadron (strong forces particles). Neutron - subatomic particle in the baryon family. Neutron was discovered by James Chadwick in 1932. The neutron is made up of quarks.

    6. Elementary Particles fundamental particles: leptons, quarks, gauge bosons (force carriers).

    7. Elementary Particles

    8. Standard Model four fundamental forces of nature: gravitational force, strong, weak, electromagnetic forces; the gravitational force is carried by the hypothetical graviton; the electromagnetic force is carried by the photon; the strong interaction (holds the atomic nucleus together) is carried by gluons; the weak interaction (radioactivity and particle decay) is carried by the Z and W particles.

    9. Standard Model Particles transmit forces between them by exchanging force-carrying particles – bosons. Gluon g carries the strong force; it glues quarks together. Photon ? carries the electromagnetic force; (also transmits light). W and Z bosons represent the weak force; (different types of decays).

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