Which of the following statement is correct regarding Bohr's atomic model?

Energy of an electron is constant in a particular orbit.

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Electrons move to lower energy orbits by absorbing energy.

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Electrons move to higher energy orbits by emitting energy.

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Electrons revolve around the nucleus in elliptical orbits.

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Solution

The correct option is A Energy of an electron is constant in a particular orbit.
Bohr's model of the atom proposed that:
$∙$ Electrons revolve around the nucleus in concentric circular orbits. The energy of an electron is constant in a particular orbit.

$∙$ Electrons emit energy when they move to lower energy orbits from higher energy orbits.

$∙$ When an electron jumps from an inner (lower energy) orbit to an outer (higher energy) orbit, it absorbs energy.

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Similar questions

Q. (a) As long as an electron revolves in a particular orbit, the electron does not lose its energy. Therefore, these orbits are called stationary orbits and the electrons are said to be in stationary energy states.
(b) Each orbit or shell is associated with a definite amount of energy. Hence these are also called energy levels.
(c) An electron jumps from a lower energy level to a higher energy level, by absorbing energy. It jumps from a higher energy level to a lower energy level, by emitting energy in the form of electromagnetic radiation.
(d) Electrons move around the nucleus in specified circular paths called orbits or shells or energy levels and are designated as K, L, M, N shells respectively.

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Electrons in an atom revolve around the nucleus in certain selected concentric paths which are called orbits. Which of the following orbit do you think will have highest energy?

Q. What do we mean by electrons emit energy as light when they move to lower energy orbits?

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