Answers

2016-04-25T18:47:45+05:30
atom is made up of three constituting particles:
1. protons: these are positively charged particles which reside in the nucleus situated at the center of an atom.
2. neutrons: these are neutral particles i.e they have no charge they contribute towards the mass of an atom. the reside in the nucleus of the atom.
3.electrons : these are negatively charged particles that revolve around the nucleus in a fixed orbit.

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