what is the lewis-dot structure for SiCl2Br2?

Answer 1

We can't draw structures (or anything else) on these boards.
Si is the central element. Place Cl and Br in N, S, E, and W positions. Place 8 dots around Cl, and Br atoms in N, S, E, W positions. That will give you 32 electrons and by sharing, there will be 8 electrons around each element.

Answer 2

what is the lewis dot structure for c1f2+