Question

Using table 3, predict the molecular geometry of the following molecules:

Answer 1

Answer:

see explanations

Explanation:

a. The central atom bonded to four substituent atoms and having no lone pair.

This is an AX₄ geometry => tetrahedron

b. The central atom bonded to three substituent atoms and having one lone pair.

This is an AX₃E geometry => pyramidal

c. The central atom bonded to two substituent atoms ảnd having

one lone pair.

This is an AX₂E geometry => bent angular

d. The central atom bonded to two substituent atoms and having no lone pair.

This is an AX₂ geometry => linear

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Based upon the VSEPR Theory there are 6 parent geometry configurations and associated derived geometries.

Parent geometries  => Derivatives => Examples

• linear => AX₂ (BeCl₂)                        
• trigonal planer => AX₃ (BH₃) => AX₂E (Bent)  (:SnCl₂)
• tetrahedral => AX₄ (CH₄) => pyrimidal AX₃E (NH₃) => Bent AX₂E₂ (H₂O)
• trigonal bipyrimidal => AX₅ (PCl₅) => seesaw AX₄E (:SF₄) => T-shaped AX₃E₂ (ClF₃ (T-shaped) => linear AX₂E₃ (XeF₂)
• octahedral => AX₆ (SF₆) => sqr pyramid AX₅E (IF₅) => sqr planar AX₄E₂ (XeF₄)
• pentagonal bipyrimidal => AX₇ (ClF₇)

For graphic images of each geometry do an internet search for 'molecular geometry'.