Give the expected hybridization of the central atom for the molecules in Exercises 21 and 22.

Interpretation: The expected hybridization of the central atom, for the given species, is to be determined.

Concept introduction: The following steps are to be followed to determine the hybridization and the molecular structure of a given compound,

• The central atom is identified.
• Its valence electrons are determined.
• 1e− is added to the total number of valence electrons for each monovalent atom present.
• The total number obtained is divided by 2 , to find the number of electron pairs.
• This further gives us the hybridization of the given compound.

For an atom, present in the structure of a compound, the sum of the number of bonded atoms and the number of lone pairs present on it gives its steric number. The value of the steric number gives us the hybridization of the atom.

To determine: The expected hybridization of the central atom in SeO3 .

The central atom in SeO3 is selenium (Se) . The electronic configuration of selenium is

1s22s22p63s23p63d104s24p4

The valence electron in selenium is six

Interpretation: The expected hybridization of the central atom, for the given species, is to be determined.

Concept introduction: The following steps are to be followed to determine the hybridization and the molecular structure of a given compound,

• The central atom is identified.
• Its valence electrons are determined.
• 1e− is added to the total number of valence electrons for each monovalent atom present.
• The total number obtained is divided by 2 , to find the number of electron pairs.
• This further gives us the hybridization of the given compound.

For an atom, present in the structure of a compound, the sum of the number of bonded atoms and the number of lone pairs present on it gives its steric number. The value of the steric number gives us the hybridization of the atom.

To determine: The expected hybridization of the central atom in SeO2 .

Interpretation: The expected hybridization of the central atom, for the given species, is to be determined.

Concept introduction: The following steps are to be followed to determine the hybridization and the molecular structure of a given compound,

• The central atom is identified.
• Its valence electrons are determined.
• 1e− is added to the total number of valence electrons for each monovalent atom present.
• The total number obtained is divided by 2 , to find the number of electron pairs.
• This further gives us the hybridization of the given compound.

For an atom, present in the structure of a compound, the sum of the number of bonded atoms and the number of lone pairs present on it gives its steric number. The value of the steric number gives us the hybridization of the atom.

To determine: The expected hybridization of the central atom in PCl3 .

Interpretation: The expected hybridization of the central atom, for the given species, is to be determined.

Concept introduction: The following steps are to be followed to determine the hybridization and the molecular structure of a given compound,

• The central atom is identified.
• Its valence electrons are determined.
• 1e− is added to the total number of valence electrons for each monovalent atom present.
• The total number obtained is divided by 2 , to find the number of electron pairs.
• This further gives us the hybridization of the given compound.

For an atom, present in the structure of a compound, the sum of the number of bonded atoms and the number of lone pairs present on it gives its steric number. The value of the steric number gives us the hybridization of the atom.

To determine: The expected hybridization of the central atom in SCl2 .

Interpretation: The expected hybridization of the central atom, for the given species, is to be determined.

Concept introduction: The following steps are to be followed to determine the hybridization and the molecular structure of a given compound,

• The central atom is identified.
• Its valence electrons are determined.
• 1e− is added to the total number of valence electrons for each monovalent atom present.
• The total number obtained is divided by 2 , to find the number of electron pairs.
• This further gives us the hybridization of the given compound.

For an atom, present in the structure of a compound, the sum of the number of bonded atoms and the number of lone pairs present on it gives its steric number. The value of the steric number gives us the hybridization of the atom.

To determine: The expected hybridization of the central atom in SiF4 .