Effective Nuclear Charge

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Nathan Mariano 2G
Posts: 68
Joined: Fri Sep 28, 2018 12:29 am

Effective Nuclear Charge

Postby Nathan Mariano 2G » Sun Oct 28, 2018 2:48 pm

What is the effective nuclear charge? How does it affect electrons?

Michelle Wang 4I
Posts: 63
Joined: Fri Sep 28, 2018 12:27 am

Re: Effective Nuclear Charge

Postby Michelle Wang 4I » Sun Oct 28, 2018 2:53 pm

Effective nuclear charge is the attraction between the protons and valence electrons. As the effective nuclear charge increases, the radius of the atom decreases since the valence electrons are being pulled closer to the nucleus. That is why atomic radius decreases from left to right down a row.

KatrinaPho_2I
Posts: 60
Joined: Fri Sep 28, 2018 12:28 am

Re: Effective Nuclear Charge

Postby KatrinaPho_2I » Sun Oct 28, 2018 3:04 pm

Effective nuclear charge, as stated before, is the net positive attraction between protons in the nucleus and the valence electrons. Many different factors affect the effective nuclear charge. For example, shielding leads to decreased effective nuclear charge, increasing atom size leads to decreased effective nuclear charge, and increasing nuclear charge across a period leads to increased effective nuclear charge.


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