Here it says determine the geometry for the following complex. Here we have chromium and it's attached to 4 ammonia molecules and two chloride ions. Here it really doesn't take much for us to realize that we have a total of 6 ligands connected to the chromium.

Here we don't have to worry about the charger, the chromium, chromium or any of that. The fact that there are 6 ligands means that the geometry has to be octahedral, so that be the geometry for the following complex ion.