Which of the following elements exists as an isotope with a mass number of 35 and an atomic number of 17?
A) chlorine
B) bromine
C) argon
D) tellurium
E) sulfur-35

Question

Quizplus · Accepted Answer

Chlorine has an atomic number of 17, which means it has 17 protons. An isotope with a mass number of 35 would have 18 neutrons (35 - 17 = 18), which corresponds to one of the naturally occurring isotopes of chlorine, specifically chlorine-35.

Which of the Following Elements Exists as an Isotope with a Mass