isotopic number


noun Physics.

the number of neutrons minus the number of protons in an atomic nucleus.

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?
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020