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Author Question: A radioactive substance containing 4.00 1016 unstable atoms has a half-life of 2.0 days. What is ... (Read 101 times)

piesebel

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on: Jul 27, 2018
A radioactive substance containing 4.00  1016 unstable atoms has a half-life of 2.0 days. What is its activity (in curies) after 1 day?
 
  What will be an ideal response?

Question 2

In the fission reaction 235U + 1n 141Ba + 92Kr + neutrons, the number of neutrons produced is
 
  A) 0.
  B) 4.
  C) 1.
  D) 3.
  E) 2.


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emily12345

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Reply #1 on: Jul 27, 2018
Answer to Question 1

4.3 Ci

Answer to Question 2

D


piesebel

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Reply 2 on: Jul 27, 2018
Wow, this really help

bigsis44

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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