Charge of antimony pentafluoride

[coconut62]

There's a question in my class test paper today which requires us to draw the dot-and-cross diagram for SbF5.

There's a charge on that molecule.

I drew it like this: (attached image)

Where does the charge come from? I don't even see any extra electrons. :shy:

 

[ldc3]

It doesn't have a charge. See http://www.webelements.com/compounds/antimony/antimony_pentafluoride.html