Removing 2nd Electron

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Jasmine Reddy DIS 1E
Posts: 34
Joined: Fri Sep 28, 2018 12:17 am

Removing 2nd Electron

Postby Jasmine Reddy DIS 1E » Wed Oct 24, 2018 3:03 pm

Why is it harder to remove a second electron from an atom (higher ionization energy)?

Briana Perez 3A
Posts: 35
Joined: Fri Sep 28, 2018 12:23 am

Re: Removing 2nd Electron

Postby Briana Perez 3A » Wed Oct 24, 2018 3:07 pm

If I understand correctly, it is actually easier to remove the second electron. However there are cases when the second electron fills the orbital completely and therefore a higher ionization energy is needed in order to remove the electron.

Adrienne_4F
Posts: 64
Joined: Fri Sep 28, 2018 12:27 am

Re: Removing 2nd Electron

Postby Adrienne_4F » Wed Oct 24, 2018 3:58 pm

Removing the second electron is more difficult because the atom pulls on the second electron stronger. In the example he gave us, after removing one electron from copper, it became Cu+, therefore the nuclear charge is stronger than Cu.

megan blatt 2B
Posts: 61
Joined: Fri Sep 28, 2018 12:28 am

Re: Removing 2nd Electron

Postby megan blatt 2B » Wed Oct 24, 2018 5:19 pm

The second electron is more difficult to remove because after the first electron is removed, the atom has a positive net charge. This means that there are now more protons in the atom than electrons so there is a stronger attraction between the positive nucleus and the remaining electrons. This increased attraction makes it harder to remove any of the remaining electrons.

Nawaphan Watanasirisuk 3B
Posts: 58
Joined: Tue Nov 28, 2017 3:03 am

Re: Removing 2nd Electron

Postby Nawaphan Watanasirisuk 3B » Thu Oct 25, 2018 2:16 am

The pull of the remaining electrons also becomes stronger after each electron removal because the pull is now divided/distributed among less electrons

Carlos De La Torre 2L
Posts: 60
Joined: Tue Oct 09, 2018 12:16 am

Re: Removing 2nd Electron

Postby Carlos De La Torre 2L » Thu Oct 25, 2018 5:46 pm

Removing the second electron is harder because as stated in class the atom becomes a cation (which normally attract electrons from other atoms) so it pulls on the electron more than before through a high Zeffective.

Katelyn Phan 2A
Posts: 61
Joined: Fri Sep 28, 2018 12:23 am

Re: Removing 2nd Electron

Postby Katelyn Phan 2A » Fri Oct 26, 2018 1:00 pm

The second ionization energy is always greater than the first since the pull of the positive protons int he nucleus is much greater.

Maria Nabagala 3E
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Joined: Fri Sep 28, 2018 12:24 am
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Re: Removing 2nd Electron

Postby Maria Nabagala 3E » Fri Oct 26, 2018 1:03 pm

It's harder to remove a 2nd electron because it has a higher electrostatic attraction

Rosha Mamita 2H
Posts: 63
Joined: Fri Sep 28, 2018 12:19 am

Re: Removing 2nd Electron

Postby Rosha Mamita 2H » Fri Oct 26, 2018 3:36 pm

Each removal of a valence electron will take more energy than the last and be more difficult. This is due to a concept where it will take more energy to remove an electron from an atom that already has a positive charge because of a higher electrostatic force.

Yiwen Chen-3G
Posts: 30
Joined: Fri Sep 28, 2018 12:25 am

Re: Removing 2nd Electron

Postby Yiwen Chen-3G » Fri Oct 26, 2018 3:48 pm

I think you can try to think it this way: the electron on the outer shells are generally less stable than those on the more inside shells, because the inner electrons are closer to the protons so that there is stronger electromagnetic attraction. Removing a second electron is to remove one inner electron compared to the first electron moved, so it requires higher energy.


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