2.8 VSEPR Theory

Question 1

What is linear

Answer 1

Linear: (Co2) All molecules with only two atoms. The molecules with one in the centre and two others to the sides. It looks like a flat line with 180 degrees between the two (bond angle)

Question 2

What is Trigonal planar

Answer 2

Trigonal Planar: (BH3) one in the centre, three around it 120 degrees bond angle. Tend to be in group 3A

Question 3

What is tetrahedral

Answer 3

tetrahedral: (CH4) one in the centre surrounded by four outers. 109.5 degrees bond angle. it is in 3d space

Question 4

What is trigonal bipyramidal

Answer 4

Trigonal Pyramidal: (NH3) have an octet pair in one directions and three connections. Elements in group 5A tend to be trigonal pyramidal instead of trigonal planar. bond angle of 107 degrees

Question 5

What is octahedral

Answer 5

octahedral: (SF6) have one in centre surrounded by 6 around. bond angle of 90 degrees

Question 6

What is bent

Answer 6

Bent: (H20) the lone pairs cause the hydrogen to be pushed to one side. Bond angle varies but is similar to the arrangement with the same number of things.