VSEPR Wizard

Predict central atom electron arrangements and molecular geometries using VSEPR data.

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bonds:

lone pairs:

Instructions

• Using VSEPR theory, count the number of bonds (b) and lone pairs (lp) in a molecule or ion central atom.
• Be sure to count once multiple bonds; i.e., for the purpose at hand, a triple or double bond is counted once. So for the central atom in
  • HCN, b = 2 and lp = 0.
  • CO₂, b = 2 and lp = 0.
  • SO₂, b = 2 and lp = 1.
• Submit b and lp through our form.

What is/is not reported?

• The tool reports for the central atom its
  • electron arrangement.
  • molecular geometry.

Who can use this tool?

• Data miners, computational chemists, chemical engineers, chemists, and chemistry teachers and their students.

Suggested Exercises

• Try the following cases:
  • Nitrosyl Bromide
  • Hydrogen Selenide
  • Nitryl Fluoride
• What would be the electron arrangement and molecular geometry associated to a central atom that
  • has 5 bonds and 2 lone pairs? Why?
  • has 4 single bonds? Why?

References

• Wikipedia (2015). VSEPR Theory.

Feedback

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