Question

How does the tendency to gain electrons change as we go down the 16thgroup of periodic table? Why?

Answer 1

Actually it never changes as in 16 the group all the elements have 4 valency electrons in outermost shell so they can neither accept nor lose the electrons.

Answer 2

the elements in 16th group don't gain electrons as they have 4 valency . but when we go from top to bottom in a group (in a non metals) tendency to gain electrons decreases due to the adding of shell at every step .