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32S has 16 neutrons whilst 33S has 17. Please see the link.

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Q: What is the different between sulfur -32 and sulfur -33?
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What isotope has 16 protons and 17 neutrons?

Sulfur-33


How many neutrons are in sulfur 33?

19, because since you know sulfur has 16 protons because that's its atomic number. you do 35-16=19


What is the charge on the ion if atomic number is 16 and mass 33 and 18 electrons?

-2 This is because there are 2 more electrons (18 e-) than protons (16 p+) Remember that the number of protons is always equal to the atomic number. Mass number 33 is of no importance for this answer. It is equal to the SUM of protons AND neutrons of this particular isotope (Sulfur-33, or 33S, <1% of all natural sulfur).


What is the mass number of a sulfur atom with 17 neutrons?

S with 17 neutrons and 16 protons has a mass number of 33 amu


How do you determine the number of neutrons in sulfur?

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) and36S (0.014%) with 36-16 = 20 neutrons (the mass of this isotope is 35.96708)