(20 Points)

A teacher shows the class a neutral atom of Bromine that has an atomic number of 35 and has 45 neutrons.

Jackie said, "I think the atomic mass would be 45, because there are 45 neutrons and neutrons make up the mass of the atom"

Pauly said, "I think the atomic mass would be 80, because there are 45 neutrons and 35 protons. Both of these have a mass of about 1."

Sam said, "There would be 45 electrons and 45 protons, because of the atomic number."

Who is correct?

Question 8 options:


A. Only Pauly is correct.


B. Both Sam and Pauly are correct.


C. Only Sam is correct.


D. Both Sam and Jackie are correct.