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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.

QUIZZES

THINK YOU’VE GOT A HANDLE ON THIS US STATE NICKNAME QUIZ?

Did you ever collect all those state quarters? Put them to good use on this quiz about curious state monikers and the facts around them.
Question 1 of 8
Mississippi’s nickname comes from the magnificent trees that grow there. What is it?
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. 2021

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