Which of the following statements is incorrect about Bohr’s atomic model?

An atom has a positively charged nucleus.

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Electrons revolve in fixed circular orbits around the nucleus.

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As long as an electron rotates in one of the energy levels, it neither loses energy nor absorbs it.

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An atom consists of a sphere of positive charge with negatively charged particles embedded in it.

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Solution

The correct option is D An atom consists of a sphere of positive charge with negatively charged particles embedded in it.
Bohr’s atomic model was proposed by Neil Bohr in 1915.
He postulated that “in an atom, electrons (negatively charged) revolve around the positively charged nucleus in a definite circular path called orbits or shells.
Each orbit or shell has fixed energy.”
Therefore, electrons revolving in a particular orbit will neither lose its energy nor absorb it.
So, option d is incorrect. “An atom consists of a sphere of positive charge with negatively charged particles embedded in it” was proposed by J. J. Thomson (Thomson’s plum-pudding model) that was later discarded.

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Similar questions

Q. Following conclusions were drawn from the given figure :
I. There is a positively charged centre in an atom called the nucleus.
II. An atom consists of a positively charged sphere and the electrons are embedded in it.
III. The electrons revolve around the nucleus in well-defined orbits.
IV. The size of the nucleus is very small as compared to the size of the atom
V. Only certain special orbits known as discrete of electrons are allowed inside the atom.
Choose the correct statements.

Q. When an electrically charged particle is in motion it inevitably loses energy according to laws of mechanics and electrodynamics. In the case of atoms, electrons(charged particle) revolves(is in motion) around nucleus, why doesn't it lose energy and crash into nucleus?

Q. The statements gives below are the postulates of various atomic models. Arrange them in their chronological order.
(a) Fine structure is due to the presence of sub shells in the main energy level.
(b) The size of an atom is much larger than the size of its nucleus.
(c) As long as the electron is present in a particular orbit, its energy remains constant.
(d) Negatively charged particles are uniformly spread in the lump of positive charge.

Everything is made of atoms and every atom has a nucleus composed of positively charged particles called protons, with some neutrally charged particles known as neutrons. The particles that orbit around the nucleus that is negatively charged are known as________.

Q. In Bohr’s model of an atom, negatively charged electrons travel around the positively charged nucleus in the orbital paths, similar to the path of the planets around the sun.

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