EAN Rule in Coordination Compounds | Effective Atomic Number | Class 12 Chemistry @a2zpractical991

So, kids, today we are going to discuss the EAN rule, kid, the EAN rule. Top post on coordination chemistry important The question arises because we are here. We figure out the EAN rule right away. the coordination compound we have It's a coordination compound. Is the child stable or not? I mean, regarding him The study of its stability based on electronic configuration is known as the EAN rule. As per the calculation, you would know every single complex. Don't all compounds want to be stable? How would you justify that? He gives it by following the EAN rule, so... That's the main kid playing by these rules. that basically tells us Whether our compound is stable or not Now, what does this stability mean for the child? You all know that some of you noble gas elements are like krypton, Xenon and radon are present in group 18. If its atomic It will become equal to the number The E&N rule that we will solve There will be an answer, there will be a value If he comes up to her level, then you Understanding it is this It becomes complex and stable here. Now, what is it, how to do it, what is its rule, so this kid's funda He gave a rule: Z minus X plus Y. Now I've said it: Z minus X plus Y but what is this Z minus X plus Y? Today I'll tell you. The child who is Z, right, describes the atomic number. of the elements such as metal, whatever remains, its atomic If you know the number, put that value there The second one represents your X, meaning when it is at the coordinate of It will remain joined; at that time, the element will be part of the metal. Find out what the oxidation number will be. It tells you how many electrons there are. The ligents donate, you have to find out, not me I understand, let me tell you an example, just a simple one Here, give the donation, look, we have someone like this, one moment, A coordination compound is given, okay. A coordinated compound will go to cobalt anisotropy. Six times three, and now it's your turn to place it here But this is the child, what should I tell you to put on, one by one Whether the count is stable or not, you will apply it yourself and me. Z minus X plus Y Yes, sir, I've written it down. What should I do now? The child should be known to all of you What is the atomic number of the element cobalt? Is it 27? Scandium, Titanium, Vanadium, Chromium, Manganese, Iron, Cobalt Save consumption means 27, okay, I've written 27, man What does minus X indicate regarding the charge level on cobalt at this time? Alright, let me show you how to find it. Cobalt NS3 6 times is correct And overcharge is yours plus 3 So you can determine its oxidation state, and also that of the metal. To find the oxidation state, it is x plus 6 times this 6 times Yeah, look, the second element has arrived, the second compound has come too, so Add plus 6 times ammonia, how much is it? If you don't know zero, then I'll tell you where you can read this, okay? You cannot write subscribe that on the complement The charge will come, you'll have to write down DICE PLUS if nothing else You kept writing, you wrote 0, then it would proceed; basically, here Three, I said, sir, you wrote zero for ammonia. Yes, this value has been given to you. Where from? Okay, I'll tell you. Hmm, where did this value come from? Check it out, you're charging something here. Remember this, look, as if you were bromine chloride, everyone Minus means a negative value, like -42, that's correct. C2O4²⁻ CO3²⁻ These have 2, all others have 1-1, and 0 is for neutral species ligands are the ones that are called the ammonia molecules you have, the H2O molecules you have, the ones that Your EN is ethylene diamine, okay, and the carbon monoxide CO that you have And in CO, there is a difference, right? One is cobalt, the other is carbon. Look at the spelling of monoxide; look at CO alpha beta So all these are zeros, and some over here Minus one exists, and some minus ones exist. So it's minus one, so I've already told you, just figure it out yourself, SO4, C2O4 is oxalate and CO3 2 minus one is carbonate. These are minus one; all the rest are also minus one. Take it, mines two And neutral ones, whose are they, write them down Ammonia, N, ethylenediamine C O The spelling of carbon monoxide will remain the same, right? I mean The alphabet will remain the same for both, and the last H2O is fine, okay, let's go Sir, I've already found out, yes, it's equal to 3, then it will become 0, so x equals 3, so here How much is the value of x going to be? 3 plus and what does it indicate about the number of electrons donated by ligands to the central metal atom? Donate and the child will have 6 legits. And nitrogen has 2 lone pairs of electrons. So, 6 doubled is 12. If you don't need to understand this much, just rely on this basis. Do not write down any number here Write it by multiplying by 2, for example, 4 will be written here. So, write 4 doubled, you'll write 8, right, okay, So I'll write 6 doubled here, that's 12, okay, Now you calculate the entire thing, it's very simple. Look, how much will it go? 24, 25, 26, 27, What is 24 plus 12? It will be 36. Now, the remaining 36 is left. I think it belongs to Crapton, so the one I saved from the complex, The coordinate complex that was taken, the remaining one is our noble gas stability. When the electronic configurations became equal, this became our complex. What will remain, will stay stable—just say it, sir, this was easy, wasn't it? You tore it apart completely; take something different, I'll take something... Alright, so find out this, look at this How many electrons does the rule accommodate? It doesn't work like that, it doesn't work like that, root Minus x plus y, okay, what is the square root of epi? Atomic number 26, x; now you need to find the value of x. Let me find out, x plus Pipe is the same spelling for both carbon monoxide Like alpha beta same is zero for carbon monoxide It happens that Quest 2 doesn't charge at all, nothing is given. How much will Zero Text Eques go? Zero, overall here But how much did the AF fee come to, kid? Look, 0 plus wide. Five written, so five times two, how much? Ten, okay, let's go. How much will it cost if you do this, and 36 okay, this one is also your L'Noble The gas is occupying the electronic configurations. Alright, so just check it out—there are many such examples. Where 35 comes, 33 comes, 26 comes, 22, meaning some of these No, it shouldn't be like Noble Cases whose atomic numbers are And Gun 18, Craypton 36, Denon 54, and Radon 86, which one of these? A match with anyone among those who come here with the number If you're not doing it, that complex will be the one Stability will be useless; it won't be stable, correct? Yes, the children have now understood the rule. To watch even better videos like this Don't forget to follow up on the A to Z Practicals Thank you, see you in the next video. With the right tricks and tips