im almost positive that you would use 10 electrons.
carbon has 4 valence electrons but since you have to that makes eight, and then of course the 1 valence for each of the hydrogen atoms, 2, so that gives you ten
four since there are four valence electrons
4
6 Dots
1
1
1
For fluorine: 8 dots.
6 Dots
Since it is a tetrabromide, there will be four dots around the atom.
1
1
1
1
1
1
For fluorine: 8 dots.
For fluorine: 8 dots.
2 dots
the Lewis structure of B or Boron would have three small dots posing as electrons. These dots can be placed anywhere around the B symbol.