# According to Planck's Theory, how does the frequency of vibration of an atom change if it gives off 5.44 * 10^-19 J while changing its value of n by 1?

### 1 Answer | Add Yours

Transition of an electron from one level to another in an atom, emits (or absorbs) energy which is equivalent to the difference between the corresponding energy levels. The relationship is given by PlancK's equation, which can be represented as:

`Delta E=hnu`

When an atom gives off 5.44 * 10^-19 J while changing its value of n by 1, the frequency of the associated radiaton is obtainable from:

`nu=(DeltaE)/h`

`=(5.44*10^-19)/(6.626*10^-34)`

`=8.21*10^14 Hz`

**Sources:**