Which experimental observation led scientists to speculate that cathode rays contained particles that were constituents of all matter?
A) The rays were deflected by electrical fields.
B) The rays were deflected by magnetic fields.
C) The rays were independent of the type of gas in the vacuum tube.
D) All of the above provided evidence of the "fundamental" nature of cathode rays.
Correct Answer:
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Q2: An anode is a
A)negatively charged ion.
B)positively charged
Q3: By measuring the deflection of cathode rays
Q4: Which person(s)won two Nobel prizes (one in
Q5: Cathode rays are beams of
A)anions.
B)electrons.
C)neutrons.
D)protons.
Q6: Which statement best summarizes the general nature
Q7: Electrolytes are important substances in the chemistry
Q8: Ions are
A)charged atoms (or groups of atoms).
B)electrons.
C)neutrons.
D)electrodes.
Q9: When combined with Thomson's determination of the
Q10: A stream of electrons in a magnetic
Q11: An anion is a
A)negatively charged ion.
B)positively charged
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