Electron Affinity

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Isabella Sanzi 2E
Posts: 54
Joined: Thu Jul 13, 2017 3:00 am

Electron Affinity

Postby Isabella Sanzi 2E » Thu Oct 26, 2017 3:40 pm

I am confused as to what it means when an element has a high electron affinity. Does a high electron affinity imply that an element easily adds an electron, or that it takes a high energy level to add the electron to the element. Additionally, what is the difference (if there is one) between electronegativity and electron affinity and are the trends on the periodic table the same?

SitharaMenon2B
Posts: 50
Joined: Thu Jul 27, 2017 3:01 am

Re: Electron Affinity

Postby SitharaMenon2B » Thu Oct 26, 2017 3:43 pm

A high positive electron affinity means that it is easy to add an electron, since electron affinity is the energy released when an electron is added. If the electron affinity is a very large negative number it will be difficult to add an electron , since energy would be required instead of released.

Brandon Fujii 1K
Posts: 51
Joined: Fri Sep 29, 2017 7:04 am

Re: Electron Affinity

Postby Brandon Fujii 1K » Thu Oct 26, 2017 4:14 pm

Electronegativity is an atom's numerical value which measures its ability to form a covalent bond.

Electron affinity is the amount of energy that an atom releases when an electron is added to it.

Additionally, Electron affinity is a given value for each atom, but electronegativity varies based on different molecules and chemical environments.

I hope that this somewhat helps!


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