Which of these molecules are linear? Check all tha...

Question

Which of these molecules are linear? Check all that apply.XeF2BeCl2SF2NO2-

Jules Bruno · Accepted Answer

The possible electron pair and molecular geometries are:XeF2Total valence electrons:            Group            Valence ElectronsXe       8A                   1 × 8 e– = 8 e–F          7A                  2 × 7 e– = 14 e–Total:  22 valence e– Lewis structure:[readmore]Electronic geometry: 2 atoms and 3 lone pairs → 5 electron groups around Xe → AX5 or trigonal bipyramidal.Shape  → molecular geometry:  atoms and lone pairs are treated differentlyThere are 2 atoms and 3 lone pairs around the central atom, which corresponds to AX2E3 or linear.BeCl2Total valence electrons:            Group            Valence ElectronsBe       2A                 1 × 2 e– = 2e–Cl        7A                  2 × 7 e– = 14 e–Total:  16 valence e– Lewis structure:No lone pairs at Be: electronic geometry → same as molecular  geometryShape  → molecular geometry:  atoms and lone pairs are treated differentlyThere are 2 atoms and 0 lone pairs around the central atom, which corresponds to AX2 or linear.SF2Total valence electrons:            Group            Valence ElectronsS          6A                   1 × 6 e– = 6 e–F          7A                  2 × 7 e– = 14 e–Total:  20 valence e– Lewis structure:Electronic geometry: 2 atoms and 2 lone pairs → 4 electron groups around S→ AX4 or tetrahedralShape  → molecular geometry:  atoms and lone pairs are treated differentlyThere are 2 atoms and 2 lone pairs around the central atom, which corresponds to AX2E2 or bent.NO2-Total valence electrons:            Group            Valence ElectronsN         5A                   1 × 5 e– = 5 e–O         6A                   2× 6 e– = 12 e–Charge: -1  (gained e)      ADD: 1 e–Total: 18 valence e– Lewis structure:Electronic geometry: 2 atoms and 1 lone pair → 3 electron groups around N→ AX3 or trigonal planarShape  → molecular geometry:  atoms and lone pairs are treated differentlyThere are 2 atoms and 1 lone pair around the central atom, which corresponds to AX2E1 or bent.ANSWER: XeF2 and BeCl2 (linear)

Problem: Which of these molecules are linear? Check all that apply.XeF2BeCl2SF2NO2-

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Problem Details

Problem: Which of these molecules are linear? Check all that apply.XeF2BeCl2SF2NO2-

FREE Expert Solution

Problem Details

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