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K-shell

[ key-shel ]
/ ˈkeɪˌʃɛl /
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noun Physics.
the first shell of electrons surrounding the nucleus of an atom and containing, when filled, two electrons having principal quantum number 1.
QUIZ
QUIZ YOURSELF ON "IS" VS. "ARE"
"Is" it time for a new quiz? "Are" you ready? Then prove your excellent skills on using "is" vs. "are."
Question 1 of 7
IS and ARE are both forms of which verb?
Compare L-shell, M-shell, N-shell.

Origin of K-shell

First recorded in 1965–70

Words nearby K-shell

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use K-shell in a sentence

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