Ask your own question, for FREE!
Physics 20 Online
OpenStudy (anonymous):

My question is attached in the picture.

OpenStudy (anonymous):

OpenStudy (vincent-lyon.fr):

Mass numbers and charge numbers should add up.

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!