Year 12s: what will be the first way you research your future options? >>

Quantum Physics Energy Level

I thought the answer is 3 since electron can only de-excite to a lower energy level (here, -1.5, -3.4, -13.6). But the answer is 6. Can anyone please explain why?

Screenshot from 2019-05-07 22-43-14.png

Reply 1

username3249896

-0.85 to -1.5
-0.85 to -3.4
-0.85 to -13.6
-1.5 to -3.4
-1.5 to -13.6
-3.4 to -13.6

Reply 2

ihs0201

So I think you're right in terms of de-exciting resulting in a lower energy level. There are 6 distinct ways however it can go to a lower energy level from -0.85eV which will cause a diffferent wavelength to be emitted:

-0.85 to -1.50

-0.85 to -3.40

-0.85 to -13.6

-1.50 to -3.40

-1.50 to -13.6

-3.40 to -13.6

Hope that helps

(edited 4 years ago)

Reply 3

esrever

Thank you so much