consider a neutral atom with 30 protons and 34 neutrons. What is the mass number for the atom?

64

http://www.ndt-ed.org/EducationResources/HighSchool/Radiography/atomicmassnumber.htm

Neutral atom with 30 protons and 34 neutrons. What is the mass numbet for atom

To find the mass number of an atom, you need to add together the number of protons and neutrons in the nucleus of the atom.

In this case, the atom has 30 protons and 34 neutrons. To find the mass number, you simply add these two numbers together:

30 protons + 34 neutrons = 64

Therefore, the mass number for the given atom is 64.