chapter 2 #37 part d

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Alex McCorriston Dis 3A
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Joined: Fri Sep 29, 2017 7:04 am

chapter 2 #37 part d

Postby Alex McCorriston Dis 3A » Sat Dec 09, 2017 4:34 pm

2.37 Which of the following statements are true for many- electron atoms? If false, explain why.
(d) Zeff for an electron in a p-orbital is lower than for an electron in an s-orbital in the same shell.

Why is this true? Wouldn't the effective nuclear charge be greater for an electron in a p-orbital because as you go across a period, the number of protons increase while there is no added shielding effect, thus resulting in a higher effective nuclear charge?

Thanks!

Lauren Seidl 1D
Posts: 51
Joined: Fri Sep 29, 2017 7:06 am

Re: chapter 2 #37 part d

Postby Lauren Seidl 1D » Sat Dec 09, 2017 5:27 pm

You can think of it as the electrons in the p-orbital being more shielded by the electrons in the s-orbital, as it is closer to the nucleus. Therefore, the positive charge of the nucleus reaches the p-orbital electrons much less than s-orbital electrons, making the Zeff on the s-orbital greater than the Zeff on the p-orbital.


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