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Cl
CHEM 121 Studio
by Learn4Less · UBC CHEM 121
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Molecules
/ triiodide ion
Structure card
Triiodide ion ·
I
X
3
X
−
\ce{I3-}
I
X
3
X
−
−
I
I
−
I
Central I atom bonded to 2 I atoms, with 3 lone pairs.
I
I
I
180°
Ideal bond angle: 180°
Valence electrons
22
VSEPR class
A
X
2
E
3
\mathrm{AX_2E_3}
A
X
2
E
3
Electron geometry
trigonal bipyramidal
Shape
linear
Bond angle
180° (exactly 180°; all three lone pairs sit equatorial)
Hybridization (I)
s
p
3
d
sp^{3}d
s
p
3
d
Polarity
nonpolar
Formal charges
I −1
Periodic table