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Which of the following in figure do not represent Bohr’s model of an atom correctly?

(a) i and ii

(b) ii and iii

(c) ii and iv

(d) i and iv

Answers (1)

Answer: C

The first shell cannot have more than 2 electrons and the second shell cannot have more than 8 electrons. Figures (ii) and (iv) do not correctly represent Bohr’s model of an atom.

The salient features of Niels Bohr's atomic model are that electrons revolve around the nucleus in stable orbits without the emission of radiant energy. Each orbit has a definite energy and is called an energy shell or energy level. An orbit or energy level is designated as K, L, M, N shells.

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