7. If a lucite rod is rubbed with cotton which of the following will occur:
a) The lucite rod will GAIN electrons and the cotton will LOSE electrons
b) The lucite rod will GAIN protons and the cotton will LOSE protons
c) The lucite rod will LOSE electrons and the cotton will GAIN electrons
d) The lucite rod will LOSE protons and the cotton will GAIN protons
Answers
Answer:
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Explanation:
and D are true; they are the simple statement of our essential charge interactions, best remembered by the jingle: "opposites attract, likes repel."
B and C are false for these same reasons; they violate the basic statement of charge interactions.
E and H are true. For an object to become charged, it must either gain or lose electrons. Losing electrons results in more positive charge than negative charge, making the object charged positively. Gaining electrons results in more negative charge than positive charge, making the object charged negatively. Protons are tightly bound in the nucleus of atoms and can never be added nor removed from atoms by ordinary electrostatic methods. The same reasoning leads one to reject choice F and G as possible true statements; the suggest that protons can be added or removed.
Answer:
Explanation:
B