Hello. So today we're going to be talking about this compound right here, and we're going to be it talking about how originally it was believed that this compound was Ionic. So it was predicted that this that that this supposedly ionic compounds a lot of synergy You would have been 360 killer jewels. Permal. So let's talk about whether this is consistent with what else we know. Well, think about it this way. So Zine on is a fairly large molecule, and this an eye on is also quite large. If we draw it's separate ions. So well, we know is that both the cat on and and I on have a plus one and the negative one charge, and they are fairly large. Well, let's take a look at potassium iodide. Potassium iodide is composed of potassium cat ion and I had died and I on and the Gladys Energy is 432 Kalid Jewel's per mole. So the zine on Cat ion in the end, I on they're both larger than potassium, and I don they have the same magnitude of charge, but their larger so it would be expected that they're lattice energy will be lower then the then the lattice energy for potassium iodide. And as we can see, that is what is going on. So that means that this is consistent with what we know. Now let's calculate the energy for basically the formation of this. So if we have Zien on gas and this gas, and then we make this I on a compound while will did the energy the ability change be. So let's calculate this. So first thing that's gonna happen is een on gas is going to lose an electron to form on Cat Ion. This is the ionization energy, and in this case, it's 1170 Kalid Jewel's Permal. Now let's take a look at the second step. So after we magazine on a cat eye on, we need to make Dan I on. So we're adding an electron and until be changed for this for the step of the reaction would be the electron affinity and the Elect and the MLB change will be negative because energy is being released when an electron is added to and an eye on so it will. So then they'll be. Change will be negative. 770 killer jewels. Permal. Now, let's so look at the very last step. So once we have the C nine cat eye on and the and I on, they will come together to form on Ionic solid. And if he noticed, this is the negative of the lattice energy which, as we mentioned before, was 460 collegiality a mole. So if we look throughout, this will notice this will Hansel it This the electrons will cancel so we have what's on the top. And so then it will be changed for the overall reaction would be the addition of all of the end of the changes of the steps. So 1170 minus 700 sandy minus 460. And we should notice that overall that until P change should be negative 60 Kalid Jewell's Permal so tangibly change is negative. So that means that this is an excellent thermic process. So that means that this compound will form However, if we compare it to say another until pia formation safer lithium fluoride. The until p change was negative. 594 0.1 killer jewels promote, so this ionic solid will form. It's probably not as a stable of lithium fluoride, because it's not as a claw, thermic, but it will form, so it is stable, and there we have.