Wavelength


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Leslie Romo 1C
Posts: 21
Joined: Fri Sep 25, 2015 3:00 am

Wavelength

Postby Leslie Romo 1C » Fri Oct 09, 2015 8:54 pm

The problem is "What is the wavelength of the radiation emitted when an electron transitions from n=4 to n=3." I am bit confused on how to set up the formula. Would this be the formula:
ΔE=-hR(1/n^2-1/n^2)

The first 'n' being n=4 and the second n=3?? how do we know which one is which?

Brandon Truong 2G
Posts: 29
Joined: Fri Sep 25, 2015 3:00 am

Re: Wavelength

Postby Brandon Truong 2G » Fri Oct 09, 2015 9:09 pm

The formula you use is similar to that one. The formula is

The first n is 3 and the second n is 4. The reason is because a photon is released when an electron falls from a higher energy level to a lower energy level. The equation is based on Final minus Initial. Since n=3 is the final and n=4 is the initial, the first n is 3 and the second n is 4.


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