K-SHELL


Meaning of K-SHELL in English

ˈ ̷ ̷ˌ ̷ ̷ noun

Usage: usually capitalized K

: the innermost shell of electrons surrounding an atomic nucleus and constituting the lowest available energy level for the electrons — compare l-shell , m-shell

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.