Enter the atomic number and principal quantum numbers of the initial and final state of an emitted light to calculate the wavelength using the Rydberg equation.

- Average Atomic Mass Calculator
- Wavelength Calculator
- Wave Speed Calculator
- Energy to Wavelength Calculator

## Rydber Equation Formula

The following formula is used by the calculator to calculate the wavelength of an emitted light.

W = 1 / [R*Z^2*(1/nf^2 – 1/ni^2)]

- Where W is the wavelength
- R is the rydberg constant ( 1.097 * 10^7 m^-1 )
- Z is the number of protons in the nucleus of the element
- nf is the principal quantum number in the final state
- ni is the principal quantum number in the initial state

## Rydberg Equation Definition

The rydberg equation is a formula used to calculate the wavelength of light that is emitted when hydrogen like elements are switching to different energy levels.

## Rydberg Equation Example

How to calculate wavelength with the Rydberg equation

**First, determine the number of protons in the nucleus of the element**The element will need to be either hydrogen or hydrogen like.

**Next, determine the principal quantum numbers of the element**This will be the numbers of the element in it’s initial and final state after having gone a change in energy levels.

**Finally, calculate the wavelength of the light**Calculate the wavelength of the light emitted from the change in energy levels of the element.

## FAQ

**What is the rydberg equation?**

The rydber equation is a formula used to calculate the wavelength of light that is emitted when hydrogen like elements are switching to different energy levels.

**How do you calculate the rydberg equation?**

It’s not so much that you calculate the rydberg equation, but rather you calculate the wavelength from the formula. Use the calculator above or formula to calculate the wavelength,.

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