s-block vs. p-block effective nuclear charge

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Anisha Chandra 1K
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Joined: Thu Jul 11, 2019 12:17 am

s-block vs. p-block effective nuclear charge

Postby Anisha Chandra 1K » Fri Nov 01, 2019 3:48 pm

so s electrons are found close to the nucleus and are therefore more tightly bound to the nucleus
but p electrons (assume same principal energy level) have higher effective nuclear charge than s electrons because they have more protons and electrons

Both of those statements seem contradictory, so could someone please clarify?

ishaa Diwakar 4E
Posts: 56
Joined: Wed Sep 11, 2019 12:17 am

Re: s-block vs. p-block effective nuclear charge

Postby ishaa Diwakar 4E » Fri Nov 01, 2019 3:58 pm

The p-block atoms with more protons will have a higher nuclear charge than those in the s-block because each electron is affected by all of the protons in the atom. This means that if an atom has 8 protons and 8 electrons, for example, each electron will individually experience the nuclear pull from all 8 protons. With an atom with 2 protons and 2 electrons, each of the electrons will only be pulled in with the strength of 2 protons.


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