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Think Think
wrote...
Posts: 2431
9 years ago
Which of the following is NOT a unit used for expressing radioactivity:
A) roentgen
B) geiger
C) rem
D) curie
E) All of the above are units used to express radioactivity.

Textbook 
Introductory Chemistry Essentials

Introductory Chemistry Essentials


Edition: 5th
Author:
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Answer accepted by topic starter
mel!811mel!811
wrote...
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Posts: 2794
9 years ago
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