QQuestionChemistry
QuestionChemistry
"The molecular geometry (shape) of BeH^2 is __________.
Options
Trigonal pyramidal
Trigonal planar
Bent
Linear"
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Answer
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Step 1: Determine the electron geometry of the molecule using the valence shell electron pair repulsion (VSEPR) theory.
The electron geometry of BeH^2 can be determined by counting the total number of electron pairs (both bonding and non-bonding) around the central atom (Be). In this case, there are two bonding pairs of electrons. According to the VSEPR theory, these electron pairs will arrange themselves in such a way that they minimize repulsion between them.
Step 2: Analyze the electron geometry to find the molecular geometry.
For a molecule with two bonding pairs, the electron geometry is linear. However, since BeH^2 has no lone pairs, the molecular geometry is the same as the electron geometry, which is linear.
Final Answer
Linear
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