Question

problem 44 of 60 determine the number of valence electrons in pcl₃, phosphorus trichloride, and then draw the corresponding lewis structure.

Explanation:

Step1: Find P valence electrons

Phosphorus (P) is in group 15, has 5 valence - electrons.

Step2: Find Cl valence electrons

Chlorine (Cl) is in group 17, each Cl has 7 valence electrons. There are 3 Cl atoms in PCl₃. So total Cl valence electrons are 3×7 = 21.

Step3: Calculate total valence electrons

Add P and Cl valence electrons: 5+21 = 26.

Answer:

26