Question

question 20
2 pts
the atomic number of sulfur is 16, which indicates that a sulfur atom contains ...
16 neutrons.
16 protons.
16 protons and 16 neutrons.
8 electrons in its outermost shell.
8 protons and 8 neutrons.

Explanation:

The atomic number of an element is equal to the number of protons in the nucleus of its atom. Sulfur has an atomic number of 16, so it contains 16 protons. Neutrons are not determined by the atomic number, and the information about the outermost - shell electrons is not relevant to the definition of atomic number.

Answer:

16 protons.