Atom is the smallest part of element. Atom consists of two parts: nucleus and the cloud of electrons. In the nucleus, there are the mixture of neutrons and protons. Moreover, neutrons and protons are composed of much smaller particles called Quark. The advantages of neutrons is to hold the protons together The electrons are spinning swiftly in an orbit around the nucleus of the atom. The speed of the electrons is supposed to be similar to the speed of light.
Force of attraction between the protons and electrons help to hold the atom together.
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