Porr Lewis structures SO4^2- and PO4^3- - CHEMISTRY COMMUNITY Foton
Transcript: So42 Lewis Structure, this is Dr. Let's do the SO4 2- Lewis structure, for the sulfate ion. On the periodic table: Sulfur, 6 valence electrons; Oxygen also has 6, we have 4 Oxygens, multiply by 4; and these 2 valence electrons up here, we need to add those, as well. That gives us a total of 32 valence electrons. We'll put the Sulfur in the center, and then the four Oxygens will go on the outside.
Next, we'll draw bonds between the Sulfur and the Oxygens, so there we have four bonds and we've used eight valence electrons. Let's go around the outer atoms and make sure they have octets. So we've used 8, 10, 12, and Looking at the structure here, we see that each of the Oxygens has 8 valence electrons; 2, 4, 6, 8; as does the Sulfur here, 2, 4, 6, 8.
But we're not quite done yet. Sulfur is in the third period of the periodic table. So we really do So42 Lewis Structure to check our formal charges. So to calculate the formal charge on the Sulfur: we see that Sulfur, on the periodic table, group 16 or 6, has 6 valence electrons. Up here, So42 Lewis Structure of the electrons, all of them are involved Well Hung Old Men bonds, so that's going to be zero.
And the bonding electrons, 2, 4, 6, 8; we've used 8 of those, and we'll divide that by 2. For the Oxygen, it's also in group 6 or 16, so it has 6 valence electrons. Up here, nonbonding, we have 6; and then bonding, we have 2.
And all these Oxygens are the same, so we only need to do one. Six minus 6 minus 2 gives us a minus 1 formal charge for each Oxygen. That does make sense, but with formal charges, we want them to be as close to zero as possible for the atoms. If I do that twice, if I move these two into the middle to form double bonds, and get rid of them, I think that'll get rid of the positive 2 charge.
Let's try that and then recalculate our formal charges. So I've moved electrons from the outside of these two green Oxygens into the middle to form double bonds. Let's see how that changes the formal charges. So for Sulfur, 6 minus zero, there are no nonbonding; and now we have 2, 4, 6, 8, 10, 12 total bonding electrons. Six minus 6, that gives us zero. So the formal charge on Heather Vahn Sulfur is zero.
If we look at the green Oxygens, you can see that we have 6 minus 4 of the nonbonding, and then 4 bonding; we Belly Punch Deviantart by 2. Six minus 4 minus 2 So42 Lewis Structure zero. Finally, looking at the blue Oxygens, we have 6 minus 6 nonbonding, So42 Lewis Structure then 2 bonding divided by 2. Six minus minus 6 minus 1 is minus 1. But if So42 Lewis Structure look, you have a negative 1 and a negative 1 here.
That works well with this. Since it's an ion, there's one last thing we need to do. We need to put brackets around it to show that it's an ion and the charge of the ion.
We add our 2 minus right there. And that is Medical Erotica Lewis structure for SO4 It was a bit of work, but we have the best structure here. Our formal charges are in good shape.
We've used all the valence electrons. So that's it. This is Dr. You might think you've got the correct Lewis structure for SO 4 at first. You'll want to calculate the formal charges on each atom to make sure you have the best Lewis structure for SO 4. You'll need to place So42 Lewis Structure double bond on two of the Oxygen atoms in order to have the best Lewis structure. When you're done put brackets, along with 2- around the Lewis structure for SO 4 2- to show that it is an ion with a negative two charge.
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Transcript: Hi, this is Dr. Let's do the SO4 2- Lewis structure, for the sulfate ion.
Lewis structure of SO There are two S=O bonds and two S-O bonds in sulfate ion lewis structure. Sulfur atom is the center atom and four oxygen atoms are located around sulfur atom. There are no lone pairs in the last shell of sulfur atom.
Try to draw the SO 4 2-Lewis structure before watching the video. Watch the video and see if you missed any steps or information. For more help, watch this general tutorial on drawing Lewis Structures for compounds like the Sulfate ion.
Lewis structure of sulfate ion is drawn in this tutorial step by step. Total valence electrons concept is used to draw the lewis structure of SO 4 In lewis structure of sulfate ion, there should be charges on several atoms due to -2 charge. Sulfate ion is one of the oxyanion of sulfur. Also, sulfate ion has a -2 charge.