if an ion (charged atom) contains 3 protons, 4 neutrons and 2 electrons, what is the mass number of the atom?
if an ion (charged atom) contains 3 protons, 4 neutrons and 2 electrons, what is the mass number of the atom?
Answer
Answer:
7
if an ion (charged atom) contains 3 protons, 4 neutrons and 2 electrons, what is the mass number of the atom?
7