Chemistry, 22.08.2020 05:01 montgomerykarloxc24x
A cathode ray tube is made of glass with a small amount of some kind of gas in it. It has metal electrodes at each end to pick up an electric current. The electrodes are named "positive” and "negative,” which were words used by Benjamin Franklin in the 1700s to describe electricity. A bright ray forms in the gas when an electric current is applied to metal electrodes. In the 1800s, an important scientist suspected that the negatively charged particles in a cathode ray were present in all atoms.
What procedure would allow that scientist to investigate this idea?
observing if the cathode ray forms when the electric current is off
making cathode ray tubes out of different materials to see if the ray is the same
using different magnets to see if the cathode ray responds in the same way to each
changing the strength of the electric current and observe how the ray forms and changes
Answers: 3
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Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.
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A cathode ray tube is made of glass with a small amount of some kind of gas in it. It has metal elec...
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