L-shell

[ el-shel ]
/ ˈɛlˌʃɛl /

noun Physics.

the second shell of electrons surrounding the nucleus of an atom and containing, when filled, eight electrons having principal quantum number 2.

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Compare K-shell, M-shell, N-shell.

Origin of L-shell

First recorded in 1925–30

Words nearby L-shell

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020