N-shell

[en-shel]

N-shell

[en-shel]
noun Physics.
the fourth shell of electrons surrounding the nucleus of an atom and containing, when filled, 32 electrons having principal quantum number 4.


Origin:
1920–25
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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N-shell is always a great word to know.
So is absorption. Does it mean:
a very large colliding-beam machine in which superconducting magnets create millions of megavolts of energy
the removal of energy or particles from a beam by the medium through which the beam propagates
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