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Cl
CHEM 121 Studio
by Learn4Less · UBC CHEM 121
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Molecules
/ sulfur trioxide
Structure card
Sulfur trioxide ·
S
O
X
3
\ce{SO3}
SO
X
3
S
2+
O
−
O
−
O
Central S atom bonded to 3 O atoms, with no lone pairs.
S
O
O
O
120°
Ideal bond angle: 120°
Valence electrons
24
VSEPR class
A
X
3
\mathrm{AX_3}
A
X
3
Electron geometry
trigonal planar
Shape
trigonal planar
Bond angle
120°
Hybridization (S)
s
p
2
sp^{2}
s
p
2
Polarity
nonpolar
Formal charges
S +2, O −1 (×2)
Also accepted
expanded-octet structure with lower formal charges
Periodic table