January 2018 NY Regents Chemistry Exam
29 An unstable nucleus spontaneously releases a positron. This is an example of (1) radioactive decay (2) nuclear fusion (3) chemical decomposition
(4) thermal conductivity
Solution: Radioactive decay is a reaction where an unstable nucleus releases a particle such as position, beta, or alpha.
Answer: 1
Prepare for the Chemistry Regents Exam: HERE
Contact us for chemistry tutoring: HERE