How does the Radial Distribution Function compare for 1s and 2s orbitals?

[José Ricardo]

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

The rest I don't how to solve.[/B]

 

[Borek]

Just look at the plot - which function has a higher maximum electron density?

 

[José Ricardo]

Just look at the plot - which function has a higher maximum electron density?

The Helium?

 

[Borek]

No.

You need to compare plots for the same atom, not for different atoms.

 

[José Ricardo]

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.

 

[José Ricardo]

Am I correct now, professor?

 

[José Ricardo]

I had this class, but my professor doesn't explain good. I learn more with videoclasses on Youtube than with him.

 

[Borek]

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".

 

[José Ricardo]

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.

 

[kuruman]

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.

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.

 

[José Ricardo]

Thanks, Kuruman!