Here's why:
* Protons define the element: The number of protons in an atom's nucleus determines its atomic number and therefore its identity as a specific element. Sulfur has an atomic number of 16, meaning it has 16 protons.
* Neutrons affect isotopes: The number of neutrons can vary within an element, creating different isotopes. Since this atom has 16 neutrons, it's the most common isotope of sulfur, known as sulfur-32 (16 protons + 16 neutrons = 32 atomic mass units).
* Electrons balance protons: In a neutral atom, the number of electrons is equal to the number of protons. This ensures a balanced electrical charge.
