Final answer:
Sulfur is the element with 16 protons in its nucleus.
Step-by-step explanation:
The element with 16 protons in its nucleus is sulfur. The atomic number of an element is equal to the number of protons in its nucleus, so an element with 16 protons will have an atomic number of 16. Sulfur is the 16th element in the periodic table, which means it has 16 protons.
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