Which of the following correctly describes an electron?
A) on the scale of subatomic particles it is massive and has a +1 charge
B) on the scale of subatomic particles it is massive and has a -1 charge
C) on the scale of subatomic particles it is light and has a +1 charge
D) on the scale of subatomic particles it is light and has a -1 charge
Correct Answer:
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