Question

what should the shape of a molecule be that consists of one atom of a group 15 element and three atoms of a group 17 element? linear tetrahedral trigonal pyramidal octahedral

Explanation:

Step1: Determine the central atom's valence electrons

Group 15 elements have 5 valence electrons.

Step2: Determine the number of bonding pairs

Each Group 17 element atom forms one bond. So, there are 3 bonding pairs.

Step3: Determine the number of lone pairs

Total valence electrons - bonding electrons = \(5 - 3\times1= 2\) electrons. So, there is 1 lone pair (\(\frac{2}{2} = 1\)).

Step4: Apply VSEPR theory

For a molecule with 3 bonding pairs and 1 lone pair around the central atom, the shape is trigonal pyramidal.

Answer:

Trigonal pyramidal