Calculate the percentage abundance of 235U and 238U2.0 billion years ago if the
Chapter 13, Problem 28(choose chapter or problem)
Calculate the percentage abundance of 235U and 238U2.0 billion years ago if the abundance today is 0.72%and 99.3%, respectively. The higher percentage of235U probably allowed natural nuclear reactors to occur.Explain why such a reaction could not occurtoday.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer