an atom is an extra nuclear particle?
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The extra nuclear portion consists of negatively charged electrons which revolves around the positively charged nucleus in circular paths called orbits. In an atom, the number of electrons is always equal to that of protons. So, atoms are always electrically neutral.
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extra nuclear portion consists of negatively charged electrons which revolves around the positively charged nucleus in circular paths called orbits. In an atom, the number of electrons is always equal to that of protons. So, atoms are always electrically neutral.
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