Multiple choice

In context to the model for the structure of an atom given by Neil Bohr in 1913, which of the following statements is not correct?

  1. There are three sub-atomic particles: electrons, protons and neutrons.

  2. There is no limit to the number of electrons which any energy level can hold.

  3. Protons and neutrons are located in a small nucleus at the centre of the atom.

  4. Electrons revolve rapidly round the nucleus in fixed circular paths called shells.
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B Correct answer
Explanation

This statement is incorrect as Neil Bohr's model clearly postulates the maximum number of electrons that can be accommodated in any shell by the formula 2n2.

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