Electron affinity vs electronegativity

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Darren Nguyen 1F
Posts: 60
Joined: Sat Sep 14, 2019 12:15 am

Electron affinity vs electronegativity

Postby Darren Nguyen 1F » Sun Nov 03, 2019 7:58 pm

Is there a difference?

KarineKim2L
Posts: 100
Joined: Fri Aug 30, 2019 12:16 am

Re: Electron affinity vs electronegativity

Postby KarineKim2L » Sun Nov 03, 2019 8:00 pm

I believe they reference the same idea, but electron affinity is a measured value of the amount of energy released when an electron is added to an atom, while electronegativity is a chemical property calculated using electron affinity.

505316964
Posts: 95
Joined: Thu Jul 11, 2019 12:17 am

Re: Electron affinity vs electronegativity

Postby 505316964 » Sun Nov 03, 2019 8:05 pm

Electron affinity is the energy released when an electron is added, while electronegativity is the tendency of an atom to attract electrons towards itself in a molecule of a compound.

kendal mccarthy
Posts: 109
Joined: Wed Nov 14, 2018 12:22 am

Re: Electron affinity vs electronegativity

Postby kendal mccarthy » Sun Nov 03, 2019 8:12 pm

Electronegativity is the strength of an atom to attract an electron in a compound
ex. in H2O oxygen has a electronegativity giving the oxygen a partial negative charge and the hydrogens a partial positive charge.
Electron affinity is the energy released when an electron is added to an atom
ex. Flourine has a high electron affinity because it needs one electron to fill it's octet and then it will be in a more favorable/stable form.

kristi le 2F
Posts: 102
Joined: Thu Jul 11, 2019 12:15 am

Re: Electron affinity vs electronegativity

Postby kristi le 2F » Sun Nov 03, 2019 8:49 pm

Electronegativity has the same trend as electron affinity. However, the mathematical definition of electronegativity is Ionization Energy + Electron Affinity divided by two. In other words, electronegativity is the average between ionization energy and electron affinity.


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