• José Ricardo
In summary, the maximum electron density for the 1s and 2s orbitals for the Radial Distribution Function is different for every atom.

## Homework Statement

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

xxx

## The Attempt at a Solution

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

#### Attachments

• H_and_He_orbitals.gif
4.2 KB · Views: 7,070
Just look at the plot - which function has a higher maximum electron density?

José Ricardo
Borek said:
Just look at the plot - which function has a higher maximum electron density?

The Helium?

No.

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

José Ricardo
Borek said:
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.

Am I correct now, professor?

José Ricardo said:
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".

baldbrain
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.

José Ricardo said:
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