June 2018 NY Regents Chemistry Exam
27 The stability of an isotope is related to its ratio of
(1) neutrons to positrons
(2) neutrons to protons
(3) electrons to positrons
(4) electrons to protons
Solution: The ratio of neutrons to protons determines the stability of an isotope.
Answer: 2
Prepare for the Chemistry Regents Exam: HERE
Contact us for chemistry tutoring: HERE