Sigma vs pi bond

[Ami_Pant_4G]

What is the difference between a sigma bond and a pi bond? Also, what does it mean that a pi bond is unhybridized?

[Anna Chen 1K]

Sigma bonds are formed by end-to-end overlapping of atomic orbitals; pi bonds are formed when the lobe of one atomic orbital overlaps another.

[chrisleung-2J]

Sigma bonds are the first bond that forms between two atoms, while any subsequent bonds that form are classified as π bonds.

[Kaylee Sepulveda 4G]

Only p orbitals can form π bonds and σ bonds are formed by the overlap of atomic orbitals over the internuclear axis. π bonds are oriented perpendicularly to the internuclear axis.

S and P orbitals can form different hybridizations,
s + p → sp
s + p + p → sp²
s + p + p + p → sp³

Overlapping hybridized orbitals form a σ bond