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**Modern Physics, Finding wave length problem! wee!!**

Ello ello!

I'm having troubles getting this table started. The directions are:

Use the Bohr diagram shown below to complete the following table.

Tell the wavelength and color of light emitted when the following energy level changes occur.

Orbital change

n = 4 to n = 1

Wavelength = ?

Color/Type

Select:

red/UV/green/IR/blue

Well once i find the wave length i'm pretty sure i can just look at the table, and find the correct color it corresponds too.

So if n = 4, that looks like its pointing to the UV spectrum, but what are those numbers under it? such as: 397 389 etc

So it goes to n =1, that means it is going to give off light. and n =1 looks lkike its still in the UV spectrum. so would i take the wave lengths:

397 - 389 = 8nm? i'm assuming those numbers are in nano meters. So the color type would be UV which i got right. But i'm still confused on the wave length. I subbmited 8nm as my answer and it was wrong.Any help would be great!