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CBSE - XI Science - Chemistry - Structure of Atom

Please provide the formulae and complete derivation of energy of electron in nth orbit (En)

Asked by Annaya Shårmå 26th September 2013, 8:02 PM
Answered by Expert


The energy of electron revolving in a stationary orbit is of two types:

Kinetic energy which is due to velocity and potential energy which is due to position of electron.

From the first postulate of Bohrs atom model:

Where m is mass of electron, v is linear velocity, r is radius of orbit in which e revolves around the nucleus.

Necessary centripetal force for revolution of electron is provided by the electrostatic force of attraction between electron and nucleus whose charge is Ze where Z is the atomic number of the atom.


Answered by Expert 30th September 2013, 11:44 AM

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