Shells, Subshells, and Orbitals
This video reviews the different orbital shapes and names. The electrons in an atom are arranged in shells that surround the nucleus, with each successive shell being farther from the nucleus. Electron shells consist of one or more subshells, and subshells consist of one or more atomic orbitals. Electrons in the same subshell have the same energy, while electrons in different shells or subshells have different energies.
Source: Khan Academy, https://youtu.be/26PF9Ctch9Y
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