Which orbital shape corresponds with sp hybridization?

The correct response indicates that sp hybridization results in a linear shape. In sp hybridization, one s orbital combines with one p orbital, producing two equivalent hybrid orbitals. These sp hybrid orbitals are oriented 180 degrees apart, which leads to a linear arrangement of the atoms bonded to the central atom.

This geometry is characteristic of molecules with sp hybridization, such as acetylene (C2H2), where the carbon atoms are bonded in a straight line. The linear shape is vital for understanding molecular geometry and bonding in organic compounds and inorganic complexes involving sp hybridized atoms.

Other options do not correctly represent the shape associated with sp hybridization. For example, a dumb-bell shape is characteristic of p orbitals, and a spherical shape pertains to s orbitals. Meanwhile, the term "complex" does not specifically describe an orbital shape in this context. The linearity resulting from sp hybridization is fundamental in predicting molecular behavior and geometry in chemistry.