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2.67

Posted: Thu Nov 02, 2017 10:15 pm
by mayapartha_1D
Hey!

I have a question regarding electron affinity trends. For problem 67 part B, the question is which has the higher electron affinity: nitrogen or chlorine. The answer should be nitrogen because it is to the right of chlorine, but in the book it says the answer is chlorine. Why is this??

Help!!

Re: 2.67

Posted: Thu Nov 02, 2017 11:19 pm
by Emily Glaser 1F
If you look at the periodic table, chlorine is actually to the right of nitrogen. Maybe you got confused with C and Cl. Also,the electron affinity of Chlorine is higher than Nitrogen since chlorine only needs one more electron to fill its shell.

Re: 2.67  [ENDORSED]

Posted: Sat Nov 11, 2017 9:20 am
by Charles Ang 1E
A quick way to know which element has a higher electron affinity is to look at the number of valence electrons it has. Chlorine has 7; whereas nitrogen has 5. Therefore, Chlorine is going to hold its outer electrons more strongly.