Ionic Bonding - Problems Which of the following could NOT form an ionic compound?
Check all that apply.
Li and CH
F-and 02-
Ba2 and Ag*
Mg2+ and S2-

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

the answer is option a.

i wish i could but this one is weird give me abc and i can solve it.