Thursday
October 2, 2014

Homework Help: Intro Chemistry

Posted by chem on Saturday, March 6, 2010 at 5:57pm.

I am reviewing my test and I having trouble figuring out the answer to the following question:

List the following element symbols in order of decreasing exothermic electron affinity: Al, Ca, As

_______>________>________

I wrote: Al>As>Ca (I got it wrong)
I know that if it is favorable to pick up an electron, energy will be released yet, I am still confused about what is the correct answer. Thank you!

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