L-shell

[ el-shel ]

/ ˈɛlˌʃɛl /

the second shell of electrons surrounding the nucleus of an atom and containing, when filled, eight electrons having principal quantum number 2.

QUIZZES

This Word Of The Day Quiz Is Far From Thersitical

Have you mastered the meaning of phronesis? How about plethoric? Take the quiz on the words from the week of February 17 to 23 to find out.

Question 1 of 7

Lincolnesque

First recorded in 1925–30