‘Electrons revolve around the nucleus in fixed orbits or shells called energy levels. State how these energy levels are represented.

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Solution

Energy levels are set orbits or shells surrounding the nucleus in which electrons rotate.
Electrons revolve in one or even more energy levels around the nucleus.
These are written as 1, 2, 3, or K, L, M, N, and so on.
Explanation of energy levels:
When an electron jumps from a low energy level to a higher energy level, it absorbs energy, and when it jumps from a higher energy state to a low energy state, it gives out energy.
As a result, they're also known as energy levels.
As the number of shells grows, the energy level lowers.
The electron in the first shell or orbit, for example, has greater energy than the others.
Representation of shells or energy levels:
An electronic shell, also known as an energy level, is an orbit of electrons that circles the nucleus of the atom.
As you move away from the nucleus, the "K shell" is nearest, followed by an "L shell," then the "M shell," and so on.
The letter (K, L, M, etc.) or principal quantum number (n = 1, 2, 3, 4, etc.) can be used to identify the shell.
Each shell has a predetermined number of electrons —followed
The first shell, the name given the "K shell," attains a maximum of two electrons.
The second shell, the "L shell," attains a maximum of eight electrons and the third shell
The "M shell," attains a maximum of 18 electrons, and so on.
" $2 n^{2}$ " or Bohr - Bury scheme is the general formula for determining the maximum number of electrons that can be carried in each shell.

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Similar questions

(1) 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
(2) Each orbit or shell is associated with a definite amount of energy. Hence, these are also called energy levels
(3) 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
(4) Electrons move around the nucleus in specified circular paths called orbits or shells or energy levels and are designated as K, L, M and N shells respectively

Arrange the above postulates of Bohr's theory in a correct sequence.

The postulates of Bohr's atomic model are given below. Arrange them in the correct sequence:
(1) As long as the 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.
(2) Electrons revolve around the nucleus in specified circular paths called orbits or shells.
(3) The energy associated with a certain energy level increases with the increase of its distance from the nucleus.
(4) An electron jumps from a lower energy level to a higher energy level by absorbing energy. But when it jumps from a higher to lower energy level, energy is emitted in the form of electromagnetic radiation.
(5) Each orbit or shell is associated with a definite amount of energy. Hence, these are also called energy levels and are designated asK, L, M, and N respectively.

Q. Electrons revolve around the ___________ in different energy levels or shells and each shell is associated with definite energy.

Q. Electrons revolve around the nucleus in circular orbits called shells.

The shells around the nucleus are called energy levels. Why?

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