F-B-F bond angle in the BF2- ion is approximately ..........?

Question

A) 90 degrees
B) 109.5 degrees
C) 120degrees
D) 180 degrees
E) 60 degrees

Answer 1

120 - but it is actually a bit less due to the lone pair. The best answer from the list is 120.

Answer 2

hi, Boron is extraordinary like that. this is a style of atoms it is happy and thought-approximately complete without an octet. this is content with 6 electrons, or 3 pairs. different atoms which wreck the octet contain Sulfur, with 6 pairs, and Phosphorus, with 5 pairs. BF2 has 3 domain names and basically 2 of them are bonded, so there's a million lone pair. the three domain names % out it as trigonal in electron geometry, yet in view that basically 2 are bonded, this is bent at a hundred and twenty (approximately 117.5) levels. BF3 has 3 domain names and all 3 of them are bonded, so there are not any lone pairs. The geometry is trigonal planar at a hundred and twenty levels. << * the reality that B has 3 domain names is something you may desire to memorize. in spite of the reality that it has 3 electrons, you in basic terms could desire to endure in techniques that B can basically bond with 3 issues. * a internet site in basic terms skill all the conceivable bonds that it may type, regardless in the event that they are bonded or no longer. You suggested how BF2 has 2 domain names because of the fact there are 2 issues bonded. on the choice, a internet site in basic terms skill a conceivable region. evaluate water, H2O. It has 4 domain names - the oxygen has extra beneficial than sufficient valence electrons to bond on all 4 places. in spite of the shown fact that, this is in basic terms bonded at 2 of them. for this reason, in view that H2O has 2 lone pairs on the Oxygen, the form is bend at 109.5 levels (factoring interior the extra beneficial repulsion from the lone pairs, approximately one 0 five)