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JEEChemistryStructure of AtomClass 11

What is the difference between shell and subshell?

A shell is a principal energy level (n); a subshell (s, p, d, f) is a division within a shell.

A shell is a principal energy level (n); a subshell (s, p, d, f) is a division within a shell. A reliable way to keep them apart is to focus on what each one is defined by, not just the similar-sounding words.

Key point

shell vs subshell

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