Consider the molecule AX5, where the central atom A has no lone pairs. X represents the...
Consider the molecule AX5, where the central atom A has no lone pairs. X represents the outer atoms, all identical to each other. How many of the following statements are correct?
A. The central atom A utilizes its outermost ns orbital, all three of its outermost np orbitals, and two of its (n – 1)d orbitals for bonding.
B. The A-X equatorial bond length is shorter than the A-X axial bond length.
C. Suppose in AX5 a lone pair was to replace one of the X atoms. At least one of the X-A-X bond angles would contract.
D. Suppose in AX5 a lone pair was to replace one of the X atoms. The lone pair would occupy an equatorial position.
E. Suppose in AX5 one of the X atoms was replaced by a larger atom. The larger atom would occupy an equatorial position.
F. The central atom A is restricted to elements in Periods 3, 4, 5, etc…
Homework Answers
AX5 molecule with no lone pairs on central atom is in trigonal bipyramidal geometry.
True statements:
B.
The A - X equitorial bond length is shorter than the A - X axial bond length.
C.
Suppose in AX5 has a lone pair was to replace one of the X atoms, at least one of the X - A - X bond angles would contract.
D.
Suppose in AX5 has a lone pair was to replace one of the X atom, the lone pair would occupy an equatorial position.
F.
The central atom A is restricted to elements in periods 3, 4, 5 etc...
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