Which subatomic particles have opposite charges?
A) protons and neutrons
B) protons and electrons
C) neutrons and electrons
D) all protons
E) all neutrons
Correct Answer:
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Q11: The diameter of a carbon atom is
Q12: If the nucleus of an atom had
Q13: Which statement regarding Millikan's oil drop experiment
Q14: What is the correct symbol for
Q15: Which subatomic particles have approximately equal masses?
A)protons
Q17: A baseball has a diameter of approximately
Q18: If the diameter of a carbon atom
Q19: What is the correct symbol for a
Q20: Who discovered electrons?
A)Henri Becquerel
B)Robert Millikan
C)Joseph John Thomson
D)John
Q21: What is the symbol for potassium?
A)P
B)K
C)Pt
D)Po
E)Pm
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