| 释义 |
[ 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. Compare K-shell, M-shell, N-shell. Origin of L-shellFirst recorded in 1925–30 Words nearby L-shellLSA, LSAT, LSD, LSE, L-shaped curve , L-shell, LSI, L sill, LSM, LSO, L.S.S. Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |