Question #c1291

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Answer 1 · 2017-02-28T03:04:31

Here is what I get for ${ICl}_{4}^{-}$ $"ICl"_4^"-"$ and ${KrF}_{2}$ $"KrF"_2$ .

${ICl}_{4}^{-}$ $bb"ICl"_4^"-"$

The Lewis structure of ${ICl}_{4}^{-}$ $"ICl"_4^"-"$ is

chem.libretexts.org

The central atom has 2 lone pairs and 4 bond pairs.

Thus, the steric number (SN) is 6, and the electron geometry is octahedral.

The lone pairs will arrange themselves at 180° to each other.

chem.libretexts.org

The molecular shape ignores the lone pairs, so the VSEPR shape is square planar.

${KrF}_{2}$ $bb"KrF"_2$

The Lewis structure of ${KrF}_{2}$ $"KrF"_2$ is:

nonsibihighschool.org

The central atom has 3 lone pairs and 2 bond pairs.

Thus, the steric number (SN) is 5, and the electron geometry is trigonal bipyramidal.

The lone pairs will arrange themselves at the equatorial positions.

KrF2
(Adapted from bilbo.chm.uri.edu)

The molecular shape ignores the lone pairs, so the VSEPR shape is linear.