The number of protons is always equal to the atomic number of any element. strontium has 38 protons, which when taken away from 90 gives you 52 neutrons, which is three more neutrons than what Sr should have making 38 90Sr an isotope. Hope this helps.
C. Answer correct I think…
Answer:
A
Explanation:
because the object's velocity had no acceleration between time intervals
Answer:
The Yerkes-Dodson Law suggests that there is a relationship between performance and arousal. Increased arousal can help improve performance, but only up to a certain point.
Explanation:
AnswerD is the correct answer. for your information, A describes the neutrons and B describes the electrons. C is wrong.
