uhh...Electron Affinity...is this correct?

[Cofo]

Electron affinity is the ENERGY required to gain one electron.
Is that definition correct?
And...electron affinity INCREASES from right to left.
Ex: chlorine has a LOWER electron affinity than sulfur, because chlorine's electronic configuration is 2s2 2p5 ........and sulfur's is 2s2 2p4.
It's going to require more energy for sulfur to gain one electron than it will be for chlorine.

Is everything I just opined correct?

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[nicUD]

I would say Electron Affinity is the energy change associated with gaining an electron. That’s straight from Chad. Electron Affinity increases from left to right because the right side of the periodic table wants electrons more badly than the left side.
And no Chlorine has a higher electron affinity because it wants to make itself a noble gas more than sulfur (which has a negative 2 charge, hence needs 2 electrons for full valence shell).
I hope this helps!

 

[Ibraiz]

This is how I look at it:

Affinity means attraction. Thus, electron affinity is the ability to attract electron. More electronegative an atom is more easily it can attract an electron and higher its electron affinity it is.

 

[Cofo]

Thanks guys for helping me understand that better. donnie, you are right. i am wrong.