1sorry "fluorides"
why stability of metal fourides decreases down the group while that of other halides increases?
-
UP 0 DOWN 0 0 2
2 Answers
1hmmmmmmmm......
think in a simple way. if u r discussing of metal groups , then certainly refers to the s- block elements.
now , in gr -1 and 2 , the electropositive character increases down the group ,
while in other groups , the electronegative character increases down the group.
thus, as in other groups , as the electronegative character increases down the group , the bonding electrons tend to move towards the central atom down the group. thus, bonded pair - bonded pair repulsion increases down the group , decreasing the stability.
also , many of these other groups hv lone pairs ( gr-1 and 2 don't hv ). thus the lone pair-bonded pair repulsion also increases down the group. this adds to decreasing stability.