Homework#8

[206190205]

Calculate the wavelength, in nanometers, of the spectral line produced when an electron in a hydrogen atom undergoes the transitions from the energy level n=2 to the level n=1.

I know that I have to use the Rydberg equation, however, when I change the meters to nanometers, am I supposed to keep the answer in scientific notation?

[Luke_Dreyer 2F]

There's no need to use scientific notation if you get the correct answer.

[Valeria Perez 3J]

I personally have found that going from nm to m is really easy if you just use the exact same number, but add x10^-9 in order to make it meters. For example if you have 0.033 nm, you could say that you have 0.033 x10^-9 m. Its quick and accurate, though if it is your final answer, it might be better to just convert it to scientific notation. But for calculations, this is a quick way to do it accurately and without much hassle.