What is the atomic symbol for an element with 16 protons and 17 neutrons?

Question

Quizplus · Accepted Answer

The atomic symbol for an element includes the atomic number (number of protons) as the bottom subscript and the mass number (number of protons + number of neutrons) as the top superscript. Therefore, the atomic symbol for an element with 16 protons and 17 neutrons would be:
^33S
(where 33 is the mass number) 
Option C is the only choice that matches this.

What Is the Atomic Symbol for an Element with 16