How many nucleons are there in the sulfur-35 isotope?
A)16
B)35
C)19
D)51

Question

Quizplus · Accepted Answer

The subscript number in the isotope's symbol represents the number of protons (also known as the atomic number). Since sulfur is an element with atomic number 16, sulfur-35 isotope has 16 protons. The total number of nucleons (protons and neutrons) can be found by rounding the atomic mass to the nearest whole number, which is 35 for sulfur-35. Therefore, sulfur-35 has 16 protons and 19 neutrons (35 - 16 = 19), giving a total of 35 nucleons.

How Many Nucleons Are There in the Sulfur-35 Isotope