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Valence Bond Theory

Outer orbits ...

Question

Outer orbits have _____ energy level than inner orbits.

A

greater

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B

smaller

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C

same

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D

none

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Solution

The correct option is A greater
Outer orbits are far away from the nucleus thereby less influenced by the nucleus but the $e^{-} s$ present in the outer orbit absorb photons from its surroundings, thereby increasing the energy.

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Q. When electron changes its orbit from outer to inner energy is :

Q. Statement 1: Transition elements in a particular period may have the same oxidation number.
Statement 2: They have a complete outer energy level.

The orbitals having different energy levels are called degenerate orbitals.

The energy level of 4s-orbital is less than 3d-orbital because:

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.

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

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