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3 bond pairs and no lone pairs
The Si has no lone pairs, but each F has 6 lone pairs. Thus 6 x 4 = 24 lone pairs, total.
8
1
2
3 bond pairs and no lone pairs
None.
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)
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.
two bonds and eight lone pairs
Two lone pair
EDTA has 6 lone pairs of electrons four from oxygen atoms and two from lone pairs on nitrogen. IN complex ions all boncds are dative covalent so both electrons come from the ligand ion this case edta. so the answer is 6 electron pairs (12 electrons) are added