Studio is gonna look at a specific way of naming ionic compounds it’s called the ich and the AHS naming system, and there’s, some requirements for elements to be named using this system. So, firstly, it’s.

Only gonna work if we’re dealing with a metal. Secondly, that metal has exactly two charges to it and, lastly, the chemical symbol of that metal comes from the latin name, not its regular name. So there is generally not a match between the symbols, name and its actual symbol.

So there’s. A few examples here we’ve got I ‘ Ve got the US ones organized right here, so we ‘ Ve got iron, copper, tin and lead so ferrous, cuprous, stannis plumb bus and we’ll reset it. I’ve got the ik versions where we ‘

Ve got ferric, Cooper, ecstatic and plumb Bukh. So as for here, you might generally find there’s a couple more, but these are the common ones. So let’s. Take a look at a couple of examples here. So let’s name the following.

So if I were to give you the formula cucl first step is you would uncross these, so you find that copper has a charge of plus one chlorine has a charge of minus one. So since we’re talking about the copper plus one version here, we’re talking about the US version.

So if we wanted to name this, we can name it cuprous chloride. You could also use a Roman numeral, so copper, one chloride, also be acceptable. So a second example: here let’s. Go with fe2o3, you uncross your ions.

Here you’re talking about iron, that’s. Three plus you’re talking with an oxygen that is minus two, and since we’re talking about the iron three-plus version here we’re talking about the occult us ferric oxide.

Now I’m thinking at this point, you’re, probably wondering well. How can I tell the two apart so just taking a quick look back at this chart here? It’s actually easy way to remember this. When we’re talking about the US version of these, we’re talking about the lower of the two charges and we’re.

Talking about the ikh version. We’re talking about the higher of the two charges, and I’d, like to point out that there’s, an easy way to remember this, because US has an O in it and so does lower. It has an eye in it and so does higher.

So if you’ve got a question that’s, dealing with, say iron three-plus. You just need to look at the two charges and say: okay, three plus three is higher than two. We must be talking about the it version.

So, lastly, here just to compare the two methods, you could always use a Roman numeral. So when you’re, putting iron and bromine together, you get up these two versions or it could use the new version of the naming system that we just learned about where it uses the ich and the US.

It’s Latin method. So you could have ferrous bromide or ferric bromide. Hopefully you found this video helpful.

Source : Youtube

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