How many electrons are needed in the molecule bcl3?

The central boron atom in boron trichloride (BCl3) has six valence electrons as shown in Figure 1.2. Boron trichloride. There are a number of molecules whose total number of valence electrons is an odd number. It is not possible for all of the atoms in such a molecule to satisfy the octet rule.

answer:

5 pantane - c5 h12 soit have 5carbon atom