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Energy Level - Bohr's Atomic Model MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 25, 2023 25:23 PM | #NEET
Quick Facts
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Energy level for Hydrogen is considered one the most difficult concept.
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Energy of electron in nth orbit is considered one of the most asked concept.
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72 Questions around this concept.
Solve by difficulty
As an electron makes a transition from an excited state to the ground state of a hydrogen-like atom/ion :
The energy required to ionised a hydrogen like ion in its ground state is 9 Rydbergs. What is the wavelength (in nm) of the radiation emitted when the electron in this ion jumps from the second excited state to the ground state ? (write your answer up to two decimal)
Some energy levels of a molecule are shown in the figure. The ratio of the wavelengths r=λ1/λ2, is given by :
NEET 2025: Syllabus | Most Scoring concepts | NEET PYQ's (2015-24)
The diagram shows the energy levels for an electron in a certain atom. Which transition shown represents the emission of a photon with the most energy?
Which of the following transitions in hydrogen atoms emit photons of the highest frequency?
The transition from the state in a hydrogen-like atom results in ultraviolet radiation. Infrared radiation will be obtained in the transition from
Which of the following atoms has the lowest ionization potential ?
Arrange the following electromagnetic radiations per quantum in the order of increasing energy :
A : Blue light B : Yellow light
C : X-ray D : Radiowave.
The wavelengths involved in the spectrum of deuterium are slightly different from that of hydrogen spectrum, because
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This ebook serves as a valuable study guide for NEET exams, specifically designed to assist students in light of recent changes and the removal of certain topics from the NEET exam.
Download EBookThe ratio of longest wavelengths corresponding to the Lyman and Balmer series in the hydrogen spectrum is:
Concepts Covered - 2
Energy of electron in nth orbit
Energy of electron in nth orbit
Potential energy: An electron possesses some potential energy because it is found in the field of nucleus potential
energy of electron in orbit of radius
is given by:
Kinetic energy : Electron posses kinetic energy because of it's motion. Closer orbits have greater kinetic energy than
outer ones. As we know
Total energy : Total energy E is the sum of potential energy and kinetic energy ie.
also
Hence
Energy level for Hydrogen
Energy level for Hydrogen
Ionization energy (IE): Total energy zero of a hydrogen atom corresponds to infinite separation between electron and nucleus. Total positive energy implies that the atom is ionized and electron is in unbound (isolated) state moving with certain kinetic energy. Minimum energy required to move an electron from ground state to is called ionization energy of the atom or ion.
The formula for the ionisation energy is -
On the basis of ionisation energy we can define the ionisation potential also -
Ionization potential (IP): Potential difference through which a free electron must be accelerated from rest such that its kinetic energy becomes equal to ionization energy of the atom is called ionization potential of the atom.
Now let us discuss Excitation energy and Excitation potential -
Excitation Energy and Excitation Potential
Now what is Excitation???
The process of absorption of energy by an electron so as to raise it from a lower energy level to some higher energy level is called excitation.
Excited state: The states of an atom other than the ground state are called its excited states. Examples are mentioned below -
Excitation energy -
Energy required to move an electron from ground state of the atom to any other excited state of the atom is called Excitation energy of that state.
Excitation potential can also be defined on the basis of excitation energy. So the excitation potential is the potential difference through which an electron must be accelerated from rest so that its kinetic energy becomes equal to the excitation energy of any state is called excitation potential of that state.
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Energy of electron in nth orbit
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