12/13/2023 0 Comments Ionic compound formula![]() ![]() Now, when the numbers in charges air different here, this is to when this is three. So it's charges two plus phosphate is one of our Polly atomic ions. So since they both have three in their charges, they just cancel out its aluminum nitride will be a little end now, Barry, Um, phosphate barium is in group two way. Okay, so the numbers are three and three. ![]() Now, for this first one, when numbers in charges are the same, So here the numbers are three and three. And what are the common types of charges based on the location of the element. Okay, that will help you see all the elements of the periodic table. Now, if you don't quite remember the charges associated with the different groups of the periodic table, make sure you go back and take a look at my videos on the periodic table charges. Nitrogen is in group 58 so his charge is three minus. I would mean that it is a non metal, and it had its ending change to ID. So that's why you write it as a all three plus nitride. Because of that, it's charge is plus three or three plus. All right, so we're gonna say aluminum is in group three A. So if we take a look here, we have aluminum nitride and berry, um, phosphate. We write the ions involved in the compound from the provided name step to use these ions to write the formula of the Ionic compound. Here we have the rules for writing ionic compounds. The true representation is a collection of those positive and negative ions together which form a crystal lattice So just remember when we're talking about ionic pairs, that's just the formula unit of an ionic compound, it is not the true representation of that ionic solid. So here it would be sodium chloride which would be N A C. Now if we were to take one of these positive ions in one of these negative ions pull them out that there would represent the formula unit, which is the simplest portion of my ionic solid. So in reality this is my ionic solid, it's a bunch of positive ions and negative ions combined together. In reality though the ionic compound is not just a single positive ion and a single negative ion, it's a collection of all of them together. So that's why they're gonna combine together. So for example, here we have the ions of sodium ions and chloride ion, they have opposing charges is what which makes them attracted to one another. Arrangement of several cat ions and and ions together that form a stable pattern. ![]() It's not that ionic pair but instead it's a crystal lattice. So it's not just a positive ion and a negative ion combining. We're going to say here in reality an ionic solid doesn't exist as an ionic pair. Now the formula unit represents the empirical where we call the simplest ratio of ions in an ionic solid that combined to give a neutral charge. ![]()
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