U feel u are getting killed by ur professor because u can't understand this simple thing,, I think it's not the problem in ur professor but it's the problem in u
Thank you so much Dr.B .Amazingly explained and a very useful technique in chemistry. I wished I would have learnt about this in high school, it would have made structures so much easier to draw. I wish your channel grows much more so more people can benefit from such knowledge and wish you good-luck with it.
Thank you so much. This video will really help me. Our teacher just gives us answer sheets without explaining anything and yesterday she just made us answer Lewis Structures lol. Thanks a lot!
I know what you mean. Just because there are a lot views and likes doesn't necessary mean the videos are better. I did this video on formal charges when my channel was pretty small. --- Dr. B
So , if I have understood , the formal charge rule is more imprtant than the octet rule, because in the 2nd LEWIS STRUCTURE of SO2, the octet rule for Sulfur has not been respected.
It's best when the negative formal charge is on the more electronegative element. If the resonance structures are equivalent then the final Lewis structure is an average of those resonance structures (like this one: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-rrps8QujYA8.html). - Dr. B
and at 1:40, the oxygen atom on the extreme left isn't sharing any electrons, right? It has its 6 electrons intact and is just using 2 of sulfur's electrons to complete its octet? pls correct me if I've got it wrong...
It would be sharing the two electrons between the O and S atom. Anytime there are electrons between two atoms we consider those to be shared (also called bonding electrons). --- Dr. B
instead of diving he bonding electrons into two (2), you can just first transform those bonding electrons into a line then count them as one, less confusion
Thank you so much! My teacher also did not explain it well at all. I am told there is another step, checking the overall charges. Do you explain this step also? I hope so : )
IM SORRY THIS'S THE LAST QUERY can the first structure of S2O actually exist? or is it just really unstable? sorry for bombarding you with questions XD
No problem, you are asking good questions. The first structure isn't as stable as the others. So it can exist, but not as frequently. It's a bit more complicated, but that's the general idea. We think of each structure contributing/being an average of the actual Lewis structure (the one we observe in the lab) The first structure in the video doesn't contribute much to the actual Lewis structure. --- Dr. B
Thanks I was really stuck on formal charges. Now I realize what octet really meant. Haha it's funny that I thought that the electrons where meant to be place in a regular manner. Haha.. I was searching for it the whole day.🤓😭🤗🙌👏😃
I have found many different formula's to find the formal charge. One of them says that to find the formal charge, it is: Valence electrons - (Bonding electrons + Non Bonding electrons). Why are there multiple formula's to find the formal charge?
That's because from Period Three (row three) and below on the Periodic Table the elements have d orbitals. This sometimes result in an atom having more than eight valence electrons. The Formal Charges help us figure out when this will happen. --- Dr. B
Good question. I use a number of tools and increasingly I’m trying to use only open source software. Lately I’ve used InkScape (inkscape.org) for the writing. It is vector based so it gives the writing a very smooth feel. For image manipulation I use GIMP (www.gimp.org). Animations are usually done in OpenToonz (opentoonz.github.io) although I’ve not done much since it takes a lot of time. For screen recording I use Camtasia Studio (costs money). This isn’t open source. I also do my cleanup and editing using Camtasia Studio. Many of the fades and transitions are done in Camtasia. OBS Studio (obsproject.com) is a free capture program that I’ve been meaning to try. I’m using a Dell Inspiron notebook computer with Windows 10 and a Yeti Blue Microphone. My writing tablet is a Wacom Bamboo.
