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Radial Distribution Function graph

  • #1

Homework Statement


Use a (simplified) graph to compare the maximum probability (electron density) of the Radial Distribution Function for the 1s and 2s orbitals.

Homework Equations


xxx

The Attempt at a Solution


H_and_He_orbitals.gif

The rest I don't how to solve.[/B]
 

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Answers and Replies

  • #2
Borek
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Just look at the plot - which function has a higher maximum electron density?
 
  • #3
Just look at the plot - which function has a higher maximum electron density?
The Helium?
 
  • #4
Borek
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No.

You need to compare plots for the same atom, not for different atoms.
 
  • #5
No.

You need to compare plots for the same atom, not for different atoms.
Ahhh... I think the hydrogen has more density for in the 1s level.
 
  • #6
Am I correct now, professor?
 
  • #7
I had this class, but my professor doesn't explain good. I learn more with videoclasses on Youtube than with him.
 
  • #8
Borek
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Am I correct now, professor?
Don't professor me.

Yes, in _every_ atom 1s orbital has a higher maximum electron density. Note: it is important to be precise, "higher maximum density" means something else than "more density".
 
  • #9
Good mornig, Borek!
So, The data that my professor gave was:
En = -2,18 x 10-18 x (1/n²) x Z² Joules, where En is the energy from the n level, Z = atomic number.

.v = c; Efoton = h.v; h = 6,626 x 10-34 J s; c = 3,00 x 108 m s -1;
Spectrum in the visible: 400 to 700nm

I don't know how to do this question with these data.:frown:
 
  • #10
kuruman
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Good mornig, Borek!
So, The data that my professor gave was:
En = -2,18 x 10-18 x (1/n²) x Z² Joules, where En is the energy from the n level, Z = atomic number.

.v = c; Efoton = h.v; h = 6,626 x 10-34 J s; c = 3,00 x 108 m s -1;
Spectrum in the visible: 400 to 700nm

I don't know how to do this question with these data.:frown:
I think that this question has been answered. What your professor gave you is relevant to the other thread that you started here
https://www.physicsforums.com/threads/diagram-of-energy-levels-of-hydrogen-lines.950966/
Use it there and please try to keep your threads sorted out in your mind.
 
  • #11
Thanks, Kuruman!
 

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