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# Wave functions and orbitals? watch

1. Hi

So there is a question where I'm asked to draw the boundary surfaces for 3d orbital so, I've drawn all 5 of them.
Then it says to write the sign of the angular part of the wave function to each orbital.
What does this mean?

Thank you!!
2. (Original post by theoneinthearm)
Hi

So there is a question where I'm asked to draw the boundary surfaces for 3d orbital so, I've drawn all 5 of them.
Then it says to write the sign of the angular part of the wave function to each orbital.
What does this mean?

Thank you!!
Indicate where the wavefunction is positive and where it is negative.
3. (Original post by alow)
Indicate where the wavefunction is positive and where it is negative.
Ooh
I still don't seem to understand sorry
I know the graphical representation of the wave function which has a positive and negative amplitude, but how do I relate this to orbitals?
4. (Original post by theoneinthearm)
Ooh
I still don't seem to understand sorry
I know the graphical representation of the wave function which has a positive and negative amplitude, but how do I relate this to orbitals?
Like this:

In the picture, different colours mean different signs.
5. (Original post by alow)
Like this:

In the picture, different colours mean different signs.
oh right!
Thank you!
Yep, I've done this so all I have to do I guess is state the postive and negative lobes in each orbital.

thank you!

lol sorry, I had two accounts - forgotten the password of this but now its back! lool!

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