Electron affinity

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Emma Scholes 1L
Posts: 62
Joined: Fri Sep 28, 2018 12:18 am

Electron affinity

Postby Emma Scholes 1L » Mon Oct 29, 2018 9:35 am

What is the difference between electron affinity and electronegativity?

Aili Ye 4L
Posts: 58
Joined: Fri Sep 28, 2018 12:16 am

Re: Electron affinity

Postby Aili Ye 4L » Mon Oct 29, 2018 10:06 am

Electron affinity is the energy released when an electron is added to a neutral atom in the gaseous state. Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Jennifer Lathrop 1F
Posts: 71
Joined: Sat Dec 02, 2017 3:00 am

Re: Electron affinity

Postby Jennifer Lathrop 1F » Mon Oct 29, 2018 8:11 pm

does electron affinity and electronegativity have the same trends on the periodic table?

Jasmine Chow 1F
Posts: 60
Joined: Fri Sep 28, 2018 12:16 am
Been upvoted: 1 time

Re: Electron affinity

Postby Jasmine Chow 1F » Tue Oct 30, 2018 10:55 pm

Electron affinity represents the energy spent or released when an electron is added to a gaseous molecule to create an ion. An example of this is the electron affinity of chlorine (-349 kJ mol-1) the negative sign represents a release in energy.

Electronegativity is the tendency of atoms to attract a bonding pair of electrons. For example, Florine is the most electronegative element on the periodic table beucase this element has 5 electrons is the 2p shell and the optimal electron configuration for this shell has six electrons. Fluorine is close to the ideal number of electrons therefore the nucleus tightly holds onto the electrons.


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