11.
The atomic number is the number of neutrons in the nucleus of an atom.
A. True B. False
Answer & Explanation
Answer: Option B
Explanation:
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12.
Charges of the same polarity tend to attract one another.
A. True B. False
Answer & Explanation
Answer: Option B
Explanation:
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13.
The atomic number of an atom equals the number of electrons orbiting the nucleus.
A. True B. False
Answer & Explanation
Answer: Option B
Explanation:
In chemistry and physics, the atomic number (also known as the proton number) is the number of protons found in the nucleus of an atom and therefore identical to the charge number of the nucleus.
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14.
A normally open push-button switch can carry current when not pushed.
A. True B. False
Answer & Explanation
Answer: Option B
Explanation:
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15.
Switches are either on or off, but can have multiple poles.
A. True B. False
Answer & Explanation
Answer: Option A
Explanation:
No answer description available for this question