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Home Work Chapter 2

Home Work Chapter 2

Q Question 1 1 out of 1 points Of the three types of radioactivity characterized by Rutherford, which is/are not electrically charged? Question 2 1 out of 1 points Of the following, the smallest and lightest subatomic particle is the ________. Question 3 1 out of 1 points The quantity 1.0 mg/cm2 is the same as 1.0 × ________ kg/m2. Question 4 1 out of 1 points There are ________ electrons, ________ protons, and ____________________neutrons in an atom of begin mathsize 14px style Xe presubscript 54 presuperscript 132 end style . Question 5 1 out of 1 points Which pair of atoms constitutes a pair of isotopes of the same element?

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1. Selected Answer: ?-rays 2. Selected Answer: electron 3. Selected Answer: 10-2 4. Selected Answer: 54, 54, 78 5. Selected Answer: begin math size 14px style straight X presubscript 6 presuperscript 14 space space straight X presubscript 6 presuperscript 12 end style