00:01
So we have this equation where energy is proportional to the charge of ion 1, multiplied by the charge of ion 2, divided by the diameter of the distance between the two atoms.
00:14
So if we look at part a, we are doubling the radius of the cation a plus.
00:23
So you can replace the q1 and q2 with a plus and our other ion b minus.
00:28
So if we double the radius of a, that means that the diameter between the two nuclei becomes larger.
00:42
So this decreases the ionic bond energy.
00:53
So if this diameter becomes larger, since it's on the denominator, you can treat the proportional sign like an equal sign if you want.
01:01
The diameter is larger, and if we make the diameter larger and keep the charges the same or keep the numerator the same, our energy will become smaller.
01:09
For part b, if we triple the charge of a, so we triple it, that means our numerator will become bigger...