As a neutral sulfur atom gains two electrons, what happens to the radius of the atom?

1 Answer
Jun 29, 2018

Would we not expect the radius to INCREASE upon reduction?


Why...well we begin with the sulfur atom, particle size is a function of nuclear charge, #Z#, and SHIELDING by other electrons.. We would expect shielding to win in this given that we have reduced the sulfur atom to give #S^(2-)#...

But as chemists, as physical scientists, we should take a good, hard, long at the data... This site tells us that the size of the sulfur atom is #100xx10^-12*m#, and that of the sulfide ion is ???