Shapes, And Bond Angles Of Molecules Worksheet Page 4
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14Complete the table below leaving out the last column.
Structural
formula in
Overall
Overall
correct shape
Number
Bond
Shape
Polar or non
Formula and
(To do this
negative
Angle
(according
Explanation for the overall shape using VSEPR theory
polar
name
you may need
charge
(according
to VSEPR
covalent
to the Lewis
centers
to VSEPR)
theory)
dot diagram
first)
HCN
2 bonding pairs of electrons & 0 lone pairs around the
Hydrogen
H-C≡N
2
180
linear
central atom. In order to minimize the repulsion the
cyanide
bonding pairs of electrons repel each other equally.
BeCl
2 bonding pairs of electrons & 0 lone pairs around the
2
Beryllium
Cl-Be-Cl
2
180
linear
central atom. In order to minimize the repulsion the
chloride
bonding pairs of electrons repel each other equally.
2 bonding pairs of electrons & 0 lone pairs of electrons
around the central atom. Bonding pairs of electrons
repel each other equally in order to minimize the
CO
O=C=O
2
180°
linear
2
repulsion between them. OR 2 negative charge
centers repel each other as much as possible to
minimize the repulsion between them.
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