QQuestionChemistry
QuestionChemistry
"Determine the electron geometry (eg) and molecular geometry (mg) of BCl₃.
A. eg = trigonal planar, mg = trigonal planar
B. eg = tetrahedral, mg = trigonal planar
C. eg = tetrahedral, mg = trigonal pyramidal
D. eg = trigonal planar, mg = bent
E. eg = trigonal bipyramidal, mg = trigonal bipyramidal"
6 months agoReport content
Answer
Full Solution Locked
Sign in to view the complete step-by-step solution and unlock all study resources.
Step 1
First, we need to determine the electron geometry (eg) around the central atom, Boron (B), in the BCl₃ molecule. Boron has 3 valence electrons and each Chlorine (Cl) atom contributes 7 valence electrons, making a total of 3 + 7 * 3 = 24 valence electrons.
Step 2
eg = \boxed{trigonal\ planar}
Since Boron has 3 electron pairs, including bonding and lone pairs, its electron geometry is trigonal planar. The shape is determined by the number of electron pairs around the central atom, not the number of atoms. So, the electron geometry (eg) is:
Final Answer
eg = \boxed{trigonal\ planar}
Need Help with Homework?
Stuck on a difficult problem? We've got you covered:
- Post your question or upload an image
- Get instant step-by-step solutions
- Learn from our AI and community of students