What is An atom ????
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An atom is the smallest particles of an element that take part in a reaction but cannot exist alone in nature is called atom.
It is made up of three particles :-
Proton
Electron
Neutron.
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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.
⚛All atoms are electrically neutral, because every atom has an equal number of electrons and protons.
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