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NEETChemistryStructure of Atom

For an electrically neutral atom, choose correct statement - (a) Number of electron is equal to number of proton. (b) Number of electron is equal to number of neutron. (c) Positive charge of the nucleus is due to protons. (d) Mass of nucleus is due to proton, neutrons and electrons.

Options

  1. Aa and c
  2. Ba, c, d
  3. Cb, d
  4. Da, b, c

Correct answer

A. a and c

Step-by-step solution

- (a): Number of electrons is equal to number of protons: This statement is true for an electrically neutral atom, as the positive charge of protons is balanced by the negative charge of electrons. (b): Number of electrons is equal to number of neutrons: This statement is not true. The number of electrons is equal to the number of protons, but the number of neutrons can vary (as seen in isotopes). (c): Positive charge of the nucleus is due to protons: This statement is true. The nucleus contains protons, which carr

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