Question

1. what shape is the following: (0.5 points) *

$nh_3$
○ linear
○ bent
○ trigonal pyramidal
○ trigonal planar
○ tetrahedral

1. write the formula for phosphorus pentabromide (0.5 points) *

enter your answer

Explanation:

Step1: Determine NH₃ molecular shape

NH₃ has N with 3 bonding pairs (to H) and 1 lone pair. Electron domain geometry is tetrahedral, but molecular shape (ignoring lone pairs) is trigonal pyramidal.

Step2: Write P pentabromide formula

Phosphorus is P, pentabromide means 5 Br atoms. Formula: PBr₅.

Answer:

1. C. Trigonal Pyramidal
2. PBr₅