Boron Trichloride,
BCl
3
Valence e = 3 + (3x7) = 24
B
Cl
Cl
Cl
RHED =
3
TRIGONAL PLANAR
POLAR
covalent bonds;
NON POLAR molecule
120°
120
°
120°
RHED =
3
TRIGONAL PLANAR
No
TRIGONAL PLANAR
Electronic geometry =
lone pairs on B
Molecular geometry =
NON POLAR
POLAR
molecule
120
°
120
°
120
°
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Methane
,
CH
4
Valence e = 4 + (4x1) = 8
C
H
H
H
H
RHED =
Very slightly POLAR
covalent bonds;
NON POLAR molecule
C
H
H
H
H
REDRAW!!
ALL
ANGLES
4
TETRAHEDRAL
No
TETRAHEDRAL
Electronic geometry =
lone pairs on C
Molecular geometry =
NON POLAR
Slightly POLAR
molecule
109.5
°