Boron trichloride is an inorganic compound that is a valuable reagent in organic synthesis. It has zero lone pairs on the central atom.
The Si has no lone pairs, but each F has 6 lone pairs. Thus 6 x 4 = 24 lone pairs, total.
3 bond pairs and no lone pairs
8
1
2
Chlorine (nucleus) has 1 lone pair and 3 polar-covalent bonding pairs (the shared pairs with O). Each oxygen (nucleus) has 3 lone pairs and 1 polar-covalent bonding pair (the shared pair with Cl)
Trigonal planar because it has three bonding pairs and one lone pair
The Si has no lone pairs, but each F has 6 lone pairs. Thus 6 x 4 = 24 lone pairs, total.
3 Lone pairs and one unpaired electron
Three bonds and no lone pairs.
One
No lone pairs
The lone pairs are on the bromine atom- 3 in all.
3 bond pairs and no lone pairs
two bonds and eight lone pairs
Two lone pair
Four pairs of electrons. Neon has a full octet.