Question

What is the difference between shells, subshells and orbitals??

Answer 1

Orbitals means the path through which the electron revolves around the nucleus
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Orbitals that have the same value of the principal quantum number form a shell. Orbitals within ashell are divided into subshells that have the same value of the angular quantum number . Chemists describe the shell and subshell in which an orbital belongs with a two-character code such as 2p or 4f.