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    Environmental Science
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    Essential Environment
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    Exam 2: Environmental Systems: Matter, Energy, and Ecosystems
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    Choose the Item That Best Matches Each Item in the Following
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Choose the Item That Best Matches Each Item in the Following

Question 51

Question 51

Multiple Choice

Choose the item that best matches each item in the following:
-Elements with the same atomic number but with different atomic masses


A) atoms
B) electrons
C) isotopes
D) ions
E) molecules
F) protons
G) neutrons

Correct Answer:

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