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anonymous
 one year ago
What is the bond angle of a trigonal planar molecule, such as boron trifluoride (BF3)?
anonymous
 one year ago
What is the bond angle of a trigonal planar molecule, such as boron trifluoride (BF3)?

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butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.3boron fluoride , BF3, has3 fluorine atoms per 1 boron atom. it looks like this: dw:1436880658455:dw So to work out the bond angle, you know in one FULL revolution (like a complete circle), the angle sum = 360 degrees. We have 3 angles. So you just go: \[360 \div 3 = ?\]

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.3trigonal planar > a molecular geometry model with ONE atom at the center (Boron) and 3 atoms (Fluorine atoms) that form an EQUILATERAL TRIANGLE. All the bonds are 120 degrees because ALL 4 atoms lay flat on a plane dw:1436881100737:dw

Photon336
 one year ago
Best ResponseYou've already chosen the best response.0Boron makes three bonds to say Fluorine and has 0 Lone pairs. If you draw it out it would be trigonal planar. Remember the presence of lone pairs causes the bond angles to shrink as a way of minimizing the repulsions by that electron pair.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank you! @butterflydreamer

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.3noooooo problem :)!
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