[lulu]

What is the correct Lewis structure for BF4+? The closest I can get is lewis structure for BF4-, but that is not it. I know what for BF4-, it is
   F
   |
F-B-F
   |
   F
with a negative charge on Boron, but the same structure plus a positive charge on boron does not work.

Thank you.

[lulu]

Thanks everyone. The teacher just notified that it was a mistake by the system. It should be BF4-.