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Atomic Spectra Requirements

Posted: Wed Oct 05, 2016 9:42 am
by Mannat Sukhija 1E
For determining light emitted based on the wavelength, should we know just the range of wavelengths for visible light (400-700 nm), or also each specific colors range or the ranges of UV light etc.

Re: Atomic Spectra Requirements  [ENDORSED]

Posted: Wed Oct 05, 2016 10:41 am
by Melanie_Wong_1K
I think it's better to know the general ranges of the Infrared, Visible, and Ultraviolet regions of the electromagnetic spectrum just because those are used the most. Here are all the ranges just in case:

radio waves - 10 cm
microwaves - 1 mm
infrared - greater than 800 nm, about 1000 nm
visible - 400-700 nm
ultraviolet - less than 400 nm, about 350 nm
x-rays and y-rays - less than 3 nm

But also remember that Balmer series generally covers the visible light region and the Lyman series generally covers the ultraviolet region.

Re: Atomic Spectra Requirements

Posted: Wed Oct 05, 2016 3:32 pm
by Mikaela Gareeb 3G
For the chapter one homework questions, it asked to determine the type of electromagnetic radiation from the wavelength calculated, so I would assume that we should know the different regions for the quiz next week.

Re: Atomic Spectra Requirements

Posted: Fri Oct 07, 2016 1:02 am
by Jane Sin 3A
It's also helpful to just remember the inverse properties of wavelength and frequency; wavelength gets bigger from y-rays/x-rays to radio waves while frequency gets smaller from y-rays/x-rays to radio waves. Once you memorize a few frequency amounts along the spectra you can fill in the blanks with what you understand about it's general trend with wavelength and frequency.