Panicky student
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#1
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#1
Is there a mistake in the book?
I will show a picture in the book
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Panicky student
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#2
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I may be wrong though.
Perhaps, because I am confused.
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Panicky student
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#3
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Q3 is the question I require help.
I am confused for Atom A, because I think it’s a trigonal pyramidal with a bond angle of 107 degrees. But the book says that the bond angle is 120 degrees,
So I am in confusion.
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blend100
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#4
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(Original post by Panicky student)
Q3 is the question I require help.
I am confused for Atom A, because I think it’s a trigonal pyramidal with a bond angle of 107 degrees. But the book says that the bond angle is 120 degrees,
So I am in confusion.
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yes i think thats incorrect as trigonal planar is 120 not trigonal pyrimidal
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briananj
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#5
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(Original post by Panicky student)
Q3 is the question I require help.
I am confused for Atom A, because I think it’s a trigonal pyramidal with a bond angle of 107 degrees. But the book says that the bond angle is 120 degrees,
So I am in confusion.
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I believe that the book is wrong in the nomecature because if it where a trigonal pyramidal it would have to have a lone pair of electrons (for example, ammonia) for it to repel so it has the "pyramid" shape, since all the electrons are bonded it is trigonal planar, sorry.
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Panicky student
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#6
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(Original post by briananj)
I believe that the book is wrong in the nomecature because if it where a trigonal pyramidal it would have to have a lone pair of electrons (for example, ammonia) for it to repel so it has the "pyramid" shape, since all the electrons are bonded it is trigonal planar, sorry.
I thought that as well, because it should have a lone pair and three bonded pairs.
So that’s why I am confused
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charco
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#7
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(Original post by Panicky student)
I thought that as well, because it should have a lone pair and three bonded pairs.
So that’s why I am confused
There are no lone pairs. It has two single bonds and one double bond, i.e. three regions of electron density (electron domains)
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Vespa21
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#8
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3 areas of electron density (2 single, 1 x double) repulsion is equal from the three regions, so 120 degrees and trigonal planar
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Panicky student
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#9
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Thank you guys for your help.
I really appreciate it for clearing out my confusion.
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