The answer is A to B because the distance is rising rapidly as seen by the steep slope segment A to B had
I'm not sure I'm sorry for that but I found this http://www.chem4kids.com/files/atom_ions.html
The maximum number of covalent bonds formed by a single carbon atom is 4
Answer:
nine
There are nine orbitals in the n = 3 shell. There is one orbital in the 3s subshell and three orbitals in the 3p subshell. The n = 3 shell, however, also includes 3d orbitals. The five different orientations of orbitals in the 3d subshell are shown in the figure below.
Explanation: