Look at the Periodic Table of the elements to find the answer.
You will find that the atomic number is 16, which means that it has 16 protons. Atomic weight is 32.065, which means that the most common isotope has atomic weight of 32. Subtract the 16 protons from the 32, which leaves 16 neutrons. The reason why the atomic weight is 32.065 rather than exactly 32.000 is because there are 25 known isotopes of sulfur with atomic weight of 26-49. 95% is S-32. About 4% is S-34, which has 18 neutrons. About 1% is S-33, with 17 neutrons.
Although for most cases this being an usable answer, it is not correct in general and in essence. It won't work with Chlorine, mass 35.45, mass numbers: 35 and 37(!) and is not complete for Carbon, mass 12.00000 (standard) and isotopes 12 (99%) and 13 (1%)!
Each isotope of sulfur (or other elements) has its own number of neutrons, not depending on its mass, but rather on its mass number (the mass number is the total (sum) of proton AND neutron number, which are both whole numbers (by definition).
Sulfur has 25 known isotopes, four of which are stable:
32S (95.02%) with 32-16 = 16 neutrons, (the mass of this isotope is 31.97207)
33S (0.75%) with 33-16 = 17 neutrons, (the mass of this isotope is 32.97150)
34S (4.21%) with 34-16 = 18 neutrons, (the mass of this isotope is 33.96787) and
36S (0.014%) with 36-16 = 20 neutrons (the mass of this isotope is 35.96708)
Because that is the number of neutrons one atom of sulfur contains.
The number of protons and of electrons is always 16, which is the atomic number of sulfur. The number of neutrons depends on which isotope of sulfur is the atom considered, but since the most common isotope is sulfur-32, the number of neutrons is most commonly also 16.
19, because since you know sulfur has 16 protons because that's its atomic number. you do 35-16=19
The sulfur-23 doesn't exist.
Sulfur has 16 protons, 16 electrons and 16, 17, 18 or 20 neutrons ( the number of neutrons is different for each isotope).
Sulfur has 16 electrons, protons and neutrons.
Sulfur has 16 protons and electrons; the number of neutrons is specific for each isotope: Number of neutrons in a sulfur isotope = Mass number - 16
The number of neutrons in an atom depends on the isotope. The most common sulfur isotope has 16. The average number of neutrons in an atom of sulfur is about 32.065.
Because that is the number of neutrons one atom of sulfur contains.
The number of protons and of electrons is always 16, which is the atomic number of sulfur. The number of neutrons depends on which isotope of sulfur is the atom considered, but since the most common isotope is sulfur-32, the number of neutrons is most commonly also 16.
The number of electrons and protons in a neutral sulfur atom is the same as the atomic number of sulfur, which is 16. However, the number of neutrons can vary: Four isotopes of sulfur occur naturally, with 16, 17, 18, and 20 neutrons. Some 95 % of the atoms in a typical sample have 16 neutrons per atom.
19, because since you know sulfur has 16 protons because that's its atomic number. you do 35-16=19
The sulfur-23 doesn't exist.
16 electrons in the neutral atom. Sulfur -32 is an isotope containing 32 protons and neutrons Sulfur has an atomic number of 16, which is the number of protons therefore sulfur-32 has 16 neutrons
Sulfur has 16 protons, 16 electrons and 16, 17, 18 or 20 neutrons ( the number of neutrons is different for each isotope).
they determine the atomic mass of the atom
19 neutrons 16 protons and electrons