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Inside the Atom — Science STD 8 — Question

Maharashtra BoardEnglish MediumSTD 8ScienceInside the Atom3 Marks
Question
Atom is electrically neutral.
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Answer

  1. An atom is made of two parts, viz. the nucleus and the extranuclear part.
  2. The nucleus is positively charged. The positive charge on the nucleus is due to protons.
  3. The extranuclear part of an atom is made of negatively charged electrons.
  4. In an atom, the number of protons is equal to the number of extranuclear electrons.
  5. The magnitude of the positive charge on the nucleus equals the magnitude of the negative charge on the electrons. As the opposite charges are balanced, the atom is electrically neutral.

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