The Lewis dot model of a molecule is shown. A visual diagram of a CH2O molecule is shown. Carbon is the central atom with two horizontal lines connecting to the oxygen atom on its right. The oxygen atom also has two pairs of dots around it. Carbon has two horizontal lines each connected to each of the two hydrogen atoms.

Based on the model, which of the following is true?

Oxygen is the least electronegative of the three atoms.
Carbon has a total of four bonded pairs of electrons around it.
Oxygen has four pairs of non-bonding innermost shell electrons.
Carbon has an incomplete octet as it transfers an electron to each hydrogen.

b. Each chlorine has three non-bonded pairs and one bonded pair of electrons.

Step-by-step explanation:

Chlorine has three valance electrons. Each Cl atom forms a single covalent bond with the central P atom by sharing a pair of electrons. After forming a single covalent bond each Cl atom is left with six electrons that do not participate in any bond formation or there are three pairs of lone electrons.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square