Question

what is the definition of atom

Answer 1

An atom is a particle which consists of subatomic particles like proton,neutron and electron.

Answer 2

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The atom is the smallest object that retains the properties of an element. Atoms are composed of electrons and a nucleus. The nucleus contains protons and neutrons.

According to J.J Thomson, an atom is a sphere of positively charged matter with electron embedded in it. The positively charge is uniformaly distributed over the entire atom.

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