Regents Prep: Chemistry
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  Question 1 of 10   Atomic Concepts
This question may require the use of the Chemistry Reference Tables or the Periodic Table of Elements.

Compared to the charge and mass of a proton, an electron has

 1.  the same charge and a smaller mass

 2.  the same charge and the same mass

 3.  an opposite charge and a smaller mass

 4.  an opposite charge and the same mass

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