Why Does Reactivity Increase Down a Group in the Periodic Table?

[hiuting]

Homework Statement

Why does the chemical reactivity increase as we go down in a group?

Homework Equations

none

The Attempt at a Solution

I know it has to do with the atomic radius... but I'm not sure :P

 

[plexus0208]

Because as you go down a group, electrons are held less tightly (less shielding), and since reactions result from the transfer of electrons, reactivity will increase.

 

[hiuting]

Because as you go down a group, electrons are held less tightly (less shielding), and since reactions result from the transfer of electrons, reactivity will increase.

thanks :) I can't believe I didn't think of that.

 

[Borek]

Because as you go down a group, electrons are held less tightly (less shielding), and since reactions result from the transfer of electrons, reactivity will increase.

That's especially true if you compare iodine with fluorine.

If you have not realized - this comment is intended to be sarcastic.

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