• Angular Momentum
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    Alpha Particle (Alpha Decay):

    A particle of 2 protons and 2 neutrons (essentially a heliumnucleus) that is emitted by an unstable radioactive nucleusduring radioactive decay. It is a relatively low-penetration particle due its comparatively low energy and high mass.



    Angular Momentum:
    A measure of the momentum of a body in rotational motion about its centre of mass. Technically, the angular momentum of a body is equal to the mass of the body multiplied by the cross product of the position vector of the particle with its velocity vector. The angular momentum of a system is the sum of the angular momenta of its constituent particles, and this total is conserved unless acted on by an outside force.



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