What is the difference between an orbital and a subshell in terms of their structure and properties?

An orbital is a region in an atom where an electron is likely to be found, while a subshell is a group of orbitals within an energy level. Orbitals have different shapes and can hold a maximum of 2 electrons with opposite spins, while subshells consist of orbitals with the same energy level and shape. Subshells are labeled with letters (s, p, d, f) and each can hold a specific number of electrons.