Which of the following is the correct number of protons, neutrons, and electrons in an atom of ¹⁹⁹₈₀Hg?

• A. 80 protons, 80 electrons, 119 neutrons
• B. 80 protons, 80 electrons, 199 neutrons
• C. 80 protons, 119 electrons, 80 neutrons
• D. 119 protons. 80 electrons, 80 neutrons

Answer: (A)