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Wavelength
Ok please will someone help me with this question:
Hydrogen can be thought of as a 1d box of length 150pm use this equation to calc the wave length of the energy emitted when an electron falls from n=3 to ground state:
E=n^2 * h^2 / 8mL^2
So im guessing m = mass of electron?
h = planks
and length is supposed to be in meters right?
So if i do that i get:
2.42x10^-17
so then e=hc/lamda .... lamda = hc/e
= 8.235x10^-8m
is this correct?
Hydrogen can be thought of as a 1d box of length 150pm use this equation to calc the wave length of the energy emitted when an electron falls from n=3 to ground state:
E=n^2 * h^2 / 8mL^2
So im guessing m = mass of electron?
h = planks
and length is supposed to be in meters right?
So if i do that i get:
2.42x10^-17
so then e=hc/lamda .... lamda = hc/e
= 8.235x10^-8m
is this correct?
So it goes from n=3 to n=1, you best check the question for more info.
You might have to find E with n=3 and n=1 and find the difference in energy, if the equation is supposed to give you the Energy associated with the level, rather than the energy difference.
The next step you have is fine, it's just making sure you have the right value for the loss in E.
You might have to find E with n=3 and n=1 and find the difference in energy, if the equation is supposed to give you the Energy associated with the level, rather than the energy difference.
The next step you have is fine, it's just making sure you have the right value for the loss in E.
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