Which of the following combinations of atomic orbitals can combine to form sigma bonds?

s-ss-pp-phybrid orbital - hybrid orbitalhybrid orbital - shybrid orbital - p

What is the bond angle (in degrees) resulting from sp hybridization?

What is the bond angle (in degrees) resulting from sp2 hybridization?

What is the bond angle (in degrees) resulting from sp3 hybridization?

To determine which combinations of atomic orbitals can form sigma bonds, you need to consider the types of overlapping orbitals. Sigma bonds form through the overlapping of atomic orbitals end-to-end, resulting in a linear or cylindrical shape.

The following combinations can form sigma bonds:
- s-s (overlap of two s orbitals)
- s-p (overlap of an s orbital with a p orbital)
- p-p (overlap of two p orbitals)
- hybrid orbital - hybrid orbital
- hybrid orbital - s
- hybrid orbital - p

Now, let's move on to the bond angles resulting from hybridization.

1. Bond angle resulting from sp hybridization:
In sp hybridization, one s orbital and one p orbital combine to form two hybrid orbitals. These two hybrid orbitals are linearly arranged with a bond angle of 180 degrees.

2. Bond angle resulting from sp2 hybridization:
In sp2 hybridization, one s orbital and two p orbitals combine to form three hybrid orbitals. These three hybrid orbitals are arranged in a trigonal planar shape with bond angles of 120 degrees.

3. Bond angle resulting from sp3 hybridization:
In sp3 hybridization, one s orbital and three p orbitals combine to form four hybrid orbitals. These four hybrid orbitals are arranged in a tetrahedral shape with bond angles of approximately 109.5 degrees.

To summarize:
- Bond angle resulting from sp hybridization: 180 degrees
- Bond angle resulting from sp2 hybridization: 120 degrees
- Bond angle resulting from sp3 hybridization: approximately 109.5 degrees