Which isotopes are radioactive? A) none B) some C) all D) ...

[cagreen833]

Which isotopes are radioactive?
 
  A) none
  B) some
  C) all
  D) even numbered
  E) odd numbered

Question 2

One sometimes hears reference to a 20-kiloton bomb. What does this mean?
 
  A) It means 20,000 tons of nuclear explosive is used in the bomb.
  B) It means that the number of fissile nuclei is equal to the number of trinitrotoluene molecules in 20,000 tons of TNT explosive.
  C) It means that the total weight of the bomb (not just the uranium) is 20,000 tons.
  D) It means that the energy released by the bomb is equal to the energy released when 20,000 tons of TNT is exploded.
  E) This refers to the maximum pressure generated by the bomb when it explodes.

[Swizqar]

Answer to Question 1

B

Answer to Question 2

D

[cagreen833]

TYSM

[cam1229]

Thanks for the timely response, appreciate it