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PH 3 has a tetrahedral or a trigonal pyramidral structure??

PH has a tetrahedral or a trigonal pyramidral structure?? 

Grade:12

6 Answers

riya
17 Points
9 years ago
It is trigonal pyramidal, just like ammonia.
 
Also, if you draw the structure of Ph3, you get sp2 + 1 lone pair which corresponds to the trigonal pyramidal structure. 
jaffrey
22 Points
9 years ago
whats the molecule type? is it AB3 E n if it is then in the ncert the structure for  AB3 E is tetrahedral.
jaffrey
22 Points
9 years ago
whats the molecule type? is it AB3 E n if it is then in the ncert the structure for  AB3 E is tetrahedral.
riya
17 Points
9 years ago
You are partly right. Look at page 111 and 112. See basically, it all depends on the lone pair. 
Since there is a lone pair, it’ll be trigonal pyramidal. (BECAUSE OF THE LONE PAIR)
if there wasn’t a lone pair , there would be a tetrahedral structure :)
riya
17 Points
9 years ago
And it is AB3E
jaffrey
22 Points
9 years ago
ty :)

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