Effective Nuclear Charge

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Nicole Jakiel 4F
Posts: 32
Joined: Fri Sep 28, 2018 12:28 am

Effective Nuclear Charge

Postby Nicole Jakiel 4F » Sat Oct 20, 2018 11:08 am

During lecture one of the notes on the presentation stated, "Inner electrons shield outer electrons from electrostatic attraction of positive nucleus; outer electrons feel a reduced electrostatic attraction, results in an effective nuclear charge." Can anyone clarify what an effective nuclear charge is?

Kessandra Ng 1K
Posts: 67
Joined: Fri Sep 28, 2018 12:25 am

Re: Effective Nuclear Charge

Postby Kessandra Ng 1K » Sat Oct 20, 2018 12:58 pm

Effective nuclear charge is basically the attraction the valence electrons around the nucleus feel from it, so what Dr. Lavelle is saying is that the inner electrons 'shield' the amount of attraction the outer electrons feel from the nucleus, hence why it feels a lower electrostatic attraction.

Kavya Juwadi 3C
Posts: 30
Joined: Fri Sep 28, 2018 12:25 am

Re: Effective Nuclear Charge

Postby Kavya Juwadi 3C » Sun Oct 21, 2018 4:21 pm

It is also important to note that effective nuclear charge tends to increase as you move from left to right on the periodic table.


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