Question

The Lewis dot model of a molecule is shown. A visual diagram of a PCl3 molecule is shown. Phosphorous is the central atom with a horizontal line connecting to each of the three Chlorine atoms around it. Phosphorous has a pair of dots on it. Each of the three chlorine atoms have a pair of three dots on it. Based on the model, which of the following is true?
( a. The electronegativity difference between phosphorous and chlorine is greater than 1.7.

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

( c. Phosphorous has three non-bonded pairs and one bonded pair of electrons.

( d. Phosphorous has three valence electrons in the outermost energy level.

Answer 1

The answer is B. Each chlorine has three non-bonded pairs and one bonded pair of electrons.

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Answer 2

Answer:

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

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.