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Which one of the following statements is correct?

Options

  1. ARutherford's alpha-particle scattering experiment led to the discovery of electron
  2. BJ J Thomson suggested that the nucleus of an atom contains protons
  3. CThe atomic number of an element is the same as the number of protons in the nucleus of its atom
  4. DThe mass number of an atom is equal to the number of electrons in its shells

Correct answer

C. The atomic number of an element is the same as the number of protons in the nucleus of its atom

Step-by-step solution

In any atom atomic number represent the number of electrons which is equal to the number of proton.

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