Based on periodic trends, which one of the following elements do you expect to be most easily reduced? Ca,Sr,Cl,or P?

1 Answer
Mar 8, 2016

Answer:

The most easily reduced metal should be the RIGHTMOST element on the Periodic Table, i.e the element with the GREATEST nuclear charge, and that is chlorine.

Explanation:

We consider the reaction:

#"Element " + e^(-) rarr "Element"^-#

Now electron affinity measures this process precisely (as long as the element is in the gaseous state!). So, we should look up a Table of Electron Affinities. Is this consistent with what we have argued?