Dictionary
List of exercises
Exercises by level
Beginner
Intermediate
Advanced
OK
Meaning of mass number in English
Pronunciation
US accent
How to pronounce mass number in American English, in context
▾
Use the controls below
to browse different examples of pronunciation.
UK accent
How to pronounce mass number in British English, in context
▾
Use the controls below
to browse different examples of pronunciation.
Noun
mass number
Definitions
1.
the sum of the number of neutrons and protons in an atomic nucleus