An atomic model shows 19 protons, 20 neutrons, and 19 electrons...

An atomic model shows 19 protons, 20 neutrons, and 19 electrons. What is the mass number of the atom...

And atomic model shows 19 protons 20 neutrons and 19 electrons what is the mass number of the atom w...

what is the proton if atomic number is 6 and atomic mass is 12

define proton, atomic number and mass number in a small sentence then make a short story with th...

1.the atomic model would be rivsed if?

Asked by Anonymous