Construct the Lewis structure model for the covalent compound phosgene (COCl2) using the following steps.
1) The total number of valence electrons in COCl2 is ____.
2) In this compound, carbon is the central atom. Arrange the atomic cores appropriately in the space below.
3) Add electron pairs to show the bonds between the atoms.
4) Assigning the remaining valence electrons so that each atom has an octet of electrons, write the Lewis structure for COCl2 in the box.