If 1 million photons in the UV region are absorbed by a hydrogen gas sample, how many electrons are excited to a higher energy level?
The answer is 1 million electron, but I do not understand. I thought that hydrogen only has 1 electron, so I believed that hydrogen absorbing 1 million photons would excite it to higher levels, but only that 1 electron. How is the answer 1 million electrons?
Photons and Electrons
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Re: Photons and Electrons
Remember that it is referring to a hydrogen gas sample, so there is more than one hydrogen gas molecule present. Since there one photon interacts with one electron, this will lead to the exitation of 1 million hydrogen atoms.
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Re: Photons and Electrons
As mentioned above, a sample does not mean one molecule. In real life, I do not think it would be practical/possible to isolate just one hydrogen gas molecule or snipe it with photons either.
Re: Photons and Electrons
A good thing to remember is that a photon will act directly with another electron so if there are one million photons it will at most interact with one million electrons.
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