(Polar molecules, Non-polar molecules, etc.)
Moderators: Chem_Mod, Chem_Admin
- Posts: 24
- Joined: Fri Sep 28, 2018 12:23 am
Can you have more than one central atom for the VSEPR formula? Such as A2? If so, why is I3- not A3 or AX2 but X3 instead?
Seohyun Park 1L
- Posts: 73
- Joined: Fri Sep 28, 2018 12:29 am
I think VSEPR always considers molecule with one central atom and names the structure based on the number of lone pair electrons and bonded electrons of the central atom. However, I'm not sure about the case for I3.
Nicole Lee 4E
- Posts: 60
- Joined: Fri Sep 28, 2018 12:16 am
- Been upvoted: 1 time
You consider one of the iodine atoms the central atom and the VSEPR formula predicts the shape around the central atom. For I3-, the VSEPR formula is AX2E3.
Aiden Atoori 1C
- Posts: 67
- Joined: Fri Sep 28, 2018 12:24 am
Yes, I beleive the central atom can be more than one atom. The text book covers VSEPR formula!
- Posts: 65
- Joined: Fri Sep 28, 2018 12:26 am
For the vsepr model to work you need one central atom and the vsepr shape is determined by the way in which surrounding atoms or lone pair electrons interact with each other around the central atom.
Return to “Determining Molecular Shape (VSEPR)”
Who is online
Users browsing this forum: No registered users and 1 guest