Which statement about VSEPR theory is not correct? In VSEPR theory, the shape or
ID: 909796 • Letter: W
Question
Which statement about VSEPR theory is not correct?
In VSEPR theory, the shape or geometry of a molecule is determined by electron–electron repulsion.
The steric number has five values from 2 to 6.
The steric number of a central atom is the sum of the number of bonds and lone pairs around the atom.
VSEPR is an acronym for valence-shell electron-pair repulsion.
The molecular shape or geometry always is the same as the electron-pair geometry.
In VSEPR theory, the shape or geometry of a molecule is determined by electron–electron repulsion.
The steric number has five values from 2 to 6.
Explanation / Answer
The molecular shape or geometry always is the same as the electron-pair geometry.
because
When determining the electron pair geometry, lone pairs and bonds are considered and when determining molecular geometry only bonded atoms are considered.
• If there aren’t any lone pairs around the central atom, the molecular geometry is as same as the electron pair geometry. However, if there are any lone pairs involved both geometries are different.
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