Ionic Bonds

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Cynthia Pinedo 1C
Posts: 23
Joined: Fri Mar 10, 2017 3:03 am

Ionic Bonds

Postby Cynthia Pinedo 1C » Sun Jul 16, 2017 10:46 pm

How do you choose which atom gains or loses an electron?

Michelle Vela 1A
Posts: 4
Joined: Fri Feb 17, 2017 3:03 am

Re: Ionic Bonds

Postby Michelle Vela 1A » Sun Jul 16, 2017 11:06 pm

It depends on the number of electrons in the atom's valence shell.

Isaiah Little 1A 14B
Posts: 50
Joined: Fri Sep 29, 2017 7:05 am

Re: Ionic Bonds

Postby Isaiah Little 1A 14B » Tue Oct 03, 2017 9:16 pm

Generally speaking, cations (positive ions) are typically metals which lose their electrons in an ionic bond, while anions (negatively charged ions) are typically nonmetals which gain electrons in an ionic bond. For example, in KCl, the metal K loses it's electron based on the aforementioned rule, while Cl gains the electron that potassium shed. Atoms bond to achieve stable noble gas configuration, and by losing an electron, K achieves the configuration of Argon while Cl does the same by gaining the electron. So if the atom would achieve noble gas configuration more easily by losing an electron than gaining an electron, it is more likely to do so.

Kaelie Blanes-Ronda 2L
Posts: 42
Joined: Fri Sep 29, 2017 7:07 am
Been upvoted: 1 time

Re: Ionic Bonds

Postby Kaelie Blanes-Ronda 2L » Wed Oct 25, 2017 9:25 pm

If an atom has less than 4 valence electrons they will typically lose their electrons to become like a Nobel gas. If an atom has more than 4 valence electrons they will typically gain their electrons to achieve the same octet state. When it comes to the ones that have exactly 4 valence electrons it will vary case by case. remember the 4 exceptions H, He, Li, and Be.


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