The atomic number of zinc
Asked by maham237 @ in Chemistry viewed by 299 People
Zinc has the chemical symbol Zn and the atomic number 30. How many protons, neutrons, and electrons does an atom of zinc-69 have?
A. 30 protons, 39, neutrons, 39 neutrons
B. 39 protons, 30 neutrons, 30 neutrons
C. 39 protons, 30 neutrons, 39 electrons
D. 30 protons, 39, neutrons, 30 electrons