CramX Logo

Q
QuestionChemistry

What is the electron geometry of PF 3 ​ ?
12 months agoReport content

Answer

Full Solution Locked

Sign in to view the complete step-by-step solution and unlock all study resources.

Step 1:
I'll solve this problem step by step, following the specified LaTeX and formatting guidelines:

Step 2:
: Determine the Lewis Structure

- First, we need to draw the Lewis structure for PF$$_{3}
- Phosphorus (P) is the central atom - Count the total valence electrons: * P: 5 valence electrons * F: 7 valence electrons × 3 = 21 valence electrons * Total: 26 valence electrons

Step 3:
: Arrange Electron Pairs

- Use the Valence Shell Electron Pair Repulsion (VSEPR) theory - Count the number of electron domains around the central phosphorus atom - Three single bonds to fluorine atoms - One lone pair on phosphorus - Total electron domains: 4

Step 4:
: Determine Electron Geometry

- Represented by $$AX_{3}E$$ molecular geometry notation
- With 4 total electron domains, the electron geometry is tetrahedral - The electron geometry is determined by the arrangement that minimizes electron pair repulsion

Step 5:
: Confirm Electron Geometry

- 4 electron domains arranged in a tetrahedral configuration - Bond angles will be close to 109.5°

Final Answer

The electron geometry of PF_{3} is tetrahedral.