Go to www.richardlouie.com, click the "Chemistry Lectures" link and you'll get a list of all the chemistry lectures I have uploaded. Click on the link next to the lecture title and it will take you to the lecture on youtube.
Yes. Go to www.richardlouie.com, and click on the chemistry lectures tab. There's a list of all of my lectures. Click on lecture #37 - covalent bonding. I discuss hybrid orbitals in this lecture.
Yes, you are correct. PH3 has 2 dots on top, which is what I thought I drew, but I guess I drew the dots too long and made them look like double bonds. Sorry for not drawing them more clearly.
Why can't we simply place the balance electrons around the central atom (Eg: HCN) without making a TRIPLE BOND between C and N?? Is there any logic? Because in PH3 the extra electrons were placed around the central atom (P), and also in NBr3?? Confused!!
A triple bond is necessary between C and N because both atoms need to have a total of 8 valence electrons. In PH3 and NBr3, a triple bond is not necessary because the P and the N will have 8 valance electrons by sharing them with the H and Br.
Sir, in water molecule there is angle between O-H-O bond, where as for HCN, CO2, molecules no bond angles, pl explain how the bond angles were generated or deviate from linear structure. With thanks. Dr. M. Kamalakkannan.
The shape of the molecule depends on the number of atoms attached to the central atom, and also depends on the number of unshared electrons pushing on the bonds between atoms. I talk about this in Chemistry Lecture #41 (Shapes of Molecules). Here's the link: ua-cam.com/video/c7Yh_ne6lTw/v-deo.html
I got tired of posting "Thank you very much!", so: Best chemistry lectures on UA-cam!
Appreciate it Doc...you made my 3 hour lecture much more understandable and I'm grateful...
Can you make a playlist for Lewis dot structures and the following chapters. Thank you so much! Your videos have helped me immensely.
Go to www.richardlouie.com, click the "Chemistry Lectures" link and you'll get a list of all the chemistry lectures I have uploaded. Click on the link next to the lecture title and it will take you to the lecture on youtube.
Thank you SO MUCH for these videos!! I feel like I can do this!
What about the Lewis structure for CO and and dichlorine octoxide (you mentioned both in previous videos)?
Do u have a lecture on hybdridization. Ive been dying because of that
Yes. Go to www.richardlouie.com, and click on the chemistry lectures tab. There's a list of all of my lectures. Click on lecture #37 - covalent bonding. I discuss hybrid orbitals in this lecture.
How do we decide the geometry of arranging the electrons? I mean the angle between bonded atoms?
Watch Chemistry Lecture #41: Shapes of Molecules. This explains the shape and bond angle between atoms in a molecule.
Isn't PH3 supposed to have the 2 dots on top of it rather than a double bond sign? It should have 8 electrons, not 10, right?
Yes, you are correct. PH3 has 2 dots on top, which is what I thought I drew, but I guess I drew the dots too long and made them look like double bonds. Sorry for not drawing them more clearly.
Why can't we simply place the balance electrons around the central atom (Eg: HCN) without making a TRIPLE BOND between C and N?? Is there any logic? Because in PH3 the extra electrons were placed around the central atom (P), and also in NBr3?? Confused!!
A triple bond is necessary between C and N because both atoms need to have a total of 8 valence electrons. In PH3 and NBr3, a triple bond is not necessary because the P and the N will have 8 valance electrons by sharing them with the H and Br.
Sir, in water molecule there is angle between O-H-O bond, where as for HCN, CO2, molecules no bond angles, pl explain how the bond angles were generated or deviate from linear structure.
With thanks.
Dr. M. Kamalakkannan.
The shape of the molecule depends on the number of atoms attached to the central atom, and also depends on the number of unshared electrons pushing on the bonds between atoms. I talk about this in Chemistry Lecture #41 (Shapes of Molecules). Here's the link:
ua-cam.com/video/c7Yh_ne6lTw/v-deo.html
Thank you for your valuable clarification. God bless you sir.
mind blowing
Another reason to skip chemsitry class.