Using the VSEPR theory, predict the molecular structure of each of the following molecules.

(a)NI3
(b)AsH3
(c)OF2

4 answers

What do you not understand about this? I think the structures can be found by googling for them.
a is a trigonal pyramid.
Why would b be different?
i cant seem to answers the first one. i keep getting the wrong answers. i put linear but its wrong. pls help
sorry i mean the last one. c. OF2. i put linear on this one but it was wrong