9 posts • Page 1 of 1
Only hydrogen. There will be cases though when maybe there are a few of the least electronegative ions that aren't hydrogen and they go in the center in different arrangements depending on how many there are. In the case of a fatty acid there are usually a bunch of carbons which in that case all go in a straight line in the center. In other cases like benzene a ring is formed so it differs.
Selena Yu 1I wrote:Is there ever an exception where you won't choose the atom with the lowest ionization energy as the central atom?
I believe that unless there's only two atoms in the molecule (no central atom), or there's a molecule that doesn't really have any central atom (Bradly mentioned a fatty acid), the atom with the lowest ionization energy will be the central atom.
Hydrogen can only make one bond, which is why it can't be central.
Arianna Perea 3H wrote:If you leave a lone pair instead of making it a bond, would it be considered wrong?
It depends on the structure as a whole and the overall charge. Try to make bonds but keeping ion mind the overall charge.
Who is online
Users browsing this forum: No registered users and 2 guests