Inner e- and Outer e-

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Sofia Q
Posts: 49
Joined: Sat Aug 17, 2019 12:15 am

Inner e- and Outer e-

Postby Sofia Q » Sat Oct 19, 2019 1:17 pm

What results from the position of inner and outer e-?

Jessica Tran_3K
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Joined: Thu Jul 25, 2019 12:17 am

Re: Inner e- and Outer e-

Postby Jessica Tran_3K » Sat Oct 19, 2019 2:25 pm

Hi!
Inner electrons shield outer electrons from electrostatic attraction of the positive nucleus, so outer electrons feel a reduced electrostatic attraction which results in an effective nuclear charge. Also, outer electrons determine the bonds that the atom makes.

jisulee1C
Posts: 149
Joined: Thu Jul 25, 2019 12:17 am

Re: Inner e- and Outer e-

Postby jisulee1C » Sat Oct 19, 2019 2:30 pm

The difference in position of the outer electron also determines the ionization energy needed to remove an electron. If there are more inner electrons, the outer electrons also receive less attraction from the neutron and therefore it will be easier to remove the outer electrons.

Alexa Hernandez 3k
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Re: Inner e- and Outer e-

Postby Alexa Hernandez 3k » Sat Oct 19, 2019 2:33 pm

The inner e- are going to act as a type of shield for the outer e-. Like the Teacher said in class: It is like when a person stand in-between you and a fire. You will not feel the same amount of heat as if you were directly in front of the fire source yourself.
The outer electrons have attraction to the nucleus than the inner ones...thats also why they are used for bonding (easier)

CynthiaLy4F
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Re: Inner e- and Outer e-

Postby CynthiaLy4F » Sat Oct 19, 2019 2:45 pm

The outer electrons feel a reduced electrostatic attraction because the inner electrons shield the outer electrons from the positive nucleus.

Maya Gollamudi 1G
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Joined: Thu Jul 25, 2019 12:15 am

Re: Inner e- and Outer e-

Postby Maya Gollamudi 1G » Sat Oct 19, 2019 9:49 pm

In multi-electron atoms, outer electrons experience less electrostatic attraction to the nucleus than the inner electrons do because of the shielding effect. This results in the effective nuclear charge felt by the valence (outer) electrons to be less than the inner electrons.

Ashley Osorio
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Joined: Thu Jul 11, 2019 12:17 am

Re: Inner e- and Outer e-

Postby Ashley Osorio » Sat Oct 19, 2019 9:53 pm

I understand the result from their position, but what does that have to do with anything? What does it affect??

Sally Qiu 2E
Posts: 105
Joined: Fri Aug 30, 2019 12:18 am

Re: Inner e- and Outer e-

Postby Sally Qiu 2E » Sat Oct 19, 2019 9:59 pm

the inner electrons "shield" the outer electrons from the electrostatic pull of the nucleus. this reduced electrostatic attraction is the "effective nuclear charge". this becomes important later when it comes to ionization and bonding

faithkim1L
Posts: 105
Joined: Fri Aug 09, 2019 12:17 am

Re: Inner e- and Outer e-

Postby faithkim1L » Sat Oct 19, 2019 10:20 pm

In multi-electron atoms, there is a shielding effect that causes the outer electrons to be 'shielded' from the nucleus by the inner electrons. Because of this, there is a lesser attraction between the outer electrons and the nucleus, and this results in a larger atomic radius.

zfinn
Posts: 106
Joined: Fri Aug 30, 2019 12:16 am

Re: Inner e- and Outer e-

Postby zfinn » Sat Oct 19, 2019 10:24 pm

The inner electrons "shield" the outer ones from the nuclear charge, which causes the outer ones to be lost easier, since they aren't as strongly attracted anymore (due to shielding).

KaitlynBali_4B
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Joined: Fri Aug 02, 2019 12:16 am

Re: Inner e- and Outer e-

Postby KaitlynBali_4B » Sat Oct 19, 2019 11:04 pm

Just to add on, the less attracted an electron is to the nucleus is, the greater chance it has to form bonds such as ionic bonds. Elements with high ionization energies have electrons that require more energy to be removed (ionization energy is essentially a measure of how difficult it is to remove an electron). Ionization energies of elements are significant because they correlate to the chemical properties of elements.

Brian J Cheng 1I
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Joined: Thu Jul 11, 2019 12:15 am

Re: Inner e- and Outer e-

Postby Brian J Cheng 1I » Sat Oct 19, 2019 11:09 pm

Just another reimagining of the same story:

The different positions of the electrons cause electrons closer to the nucleus to "shield" outer electrons from the nucleus' attractive forces. This affects the energy needed to use electrons in bonding or to remove electrons entirely. For atoms in the same period, the amount of shielding present increases as the amount of electrons per atom increases.

Shutong Hou_1F
Posts: 117
Joined: Sat Sep 14, 2019 12:17 am

Re: Inner e- and Outer e-

Postby Shutong Hou_1F » Sat Oct 19, 2019 11:56 pm

The following sentence is actually a quote that well explains the reasons that lead to difference between inner and outer electrons from professor Lavelle's ppt: "Since inner electrons shield outer electrons from electrostatic attraction of positive nucleus, outer electrons feel a reduced electrostatic attraction, resulting in an effective nuclear charge. "

IScarvie 1E
Posts: 66
Joined: Sat Aug 17, 2019 12:16 am

Re: Inner e- and Outer e-

Postby IScarvie 1E » Sun Oct 20, 2019 2:06 pm

Inner electrons feel more electrostatic attraction from the positively charged nucleus. This charge is stronger the further down the periodic table you go, so the inner electrons in those atoms are closer to the nucleus. Outer electrons are shielded from this pull by the inner electrons, so they are usually a little further away.

Abigail_Hagen2G
Posts: 107
Joined: Fri Aug 09, 2019 12:17 am

Re: Inner e- and Outer e-

Postby Abigail_Hagen2G » Sun Oct 20, 2019 3:58 pm

The outer electrons feel less of an electrostatic attraction, they're shielded by the inner ones from the nucleus.


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