Exam 7: Covalent Bonds and Molecular Structure

The electronegativities for the elements vary from 0.7 for cesium to 4.0 for fluorine.The electronegativity for iodine is 2.5.Based entirely on the general guidelines for electronegativities and bond character,

Which drawing represents a σ^* antibonding molecular orbital for a homonuclear diatomic molecule?

Based on the indicated electronegativities,arrange the following in order of increasing ionic character: CsBr,LaBr₃,PBr₃,MgBr₂.

Of BrF₃ and PF_3,the one with the smaller bond angles is ________.

The following MO diagram is appropriate for Li₂ and Be₂.Based on this diagram,

Of NH₄⁺ and NH₄^- the one with the smaller bond angles is ________.

What geometric arrangement of charge clouds is expected for an atom that has four charge clouds?

What are the bond angles in the following molecular model of ICl₄^-?

The orbital hybridization on the carbon atom in HCN is

The electronegativity for both sulfur and carbon is 2.5.Therefore the compound CS₂ would be expected to

What is geometry around the carbon atom labeled C₁?

What is the molecular geometry of BrF₄^-?

Which drawing represents a π bonding molecular orbital for a homonuclear diatomic molecule?

Which molecule contains the most easily broken carbon-carbon bond?

Which of the following would be expected to have sp² hybridization on atom A?

What are the bond angles in the following molecular model of BrF₃?

What is the geometry around the central atom in the following molecular model of ICl₄^-?

Which of the following contains an atom that does not obey the octet rule?

What is the geometry around the central atom in the following molecular model of BCl₃?

The C=O bond in COCl₂ can be described as