5.This paper describes the effect of analogical method in moden physics by using some examples in atomic physics, atomicnucleus physics and particle physics.
9.The natural or induced transformation of an atomicnucleus from a more massive to a less massive configuration by the emission of particles or radiation.
10.For example, a single electron in an unexcited atom is pictured classically as a particle moving in a circular trajectory around the atomicnucleus, whereas in quantum mechanics it is described by a static, spherically symmetric wavefunction surrounding the nucleus.
