Penetration

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Michael Le 2D
Posts: 28
Joined: Fri Sep 25, 2015 3:00 am

Penetration

Postby Michael Le 2D » Sat Oct 10, 2015 1:19 pm

The book in chapter 2.5 describes inner-shell electrons as having a "penetrating effect." This is also seen in question #2.37 which states that electrons in an s-orbital are more effective than those in other orbitals at shielding from the nuclear charger because an electron in an s-orbital can PENETRATE to the nucleus of the atom. What exactly does this entail?

Vanessa A 3F
Posts: 29
Joined: Fri Sep 25, 2015 3:00 am

Re: Penetration

Postby Vanessa A 3F » Sat Oct 10, 2015 2:20 pm

I hope this website helps with its explanation of orbital penetration.
http://chemwiki.ucdavis.edu/?title=Phys ... enetration

I think the main idea is that the electron probability density for s-orbitals is greatest at the center of the orbital, which is at the nucleus.

Will Tsai 3C
Posts: 12
Joined: Fri Sep 25, 2015 3:00 am

Re: Penetration

Postby Will Tsai 3C » Wed Oct 14, 2015 7:52 pm

In my understanding, "penetrating" the nucleus just means that the electron can get very close to the nucleus, but not actually going through it. Electrons in "s" orbitals can get much closer to the nucleus than the ones in the "p" orbitals.


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