WHAT IS ATOM
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atom is the smallest unit . it contains sub atomic particles such as proton neutron and electrons
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HEY...
ATOM IS THE SMALLEST PART OF ANY SUBSTANCE OR MATTER AND IT HAVE THREE PART..ELECTRON PROTON AND NEUTRON..
--RAAZ
ATOM IS THE SMALLEST PART OF ANY SUBSTANCE OR MATTER AND IT HAVE THREE PART..ELECTRON PROTON AND NEUTRON..
--RAAZ
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