Ask your own question, for FREE!
Chemistry 18 Online
OpenStudy (anonymous):

why is the mass number of an element always a whole number?

OpenStudy (welshfella):

because mass number = number of protons + number of neutrons in the nucleus.

OpenStudy (welshfella):

- these are elementary particles

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!