Which of the following describes the Bohr atomic model? A. Protons, neutrons, and electrons orbit around each other in set paths. B. The nucleus contains protons and neutrons and is orbited by electrons. C. Protons, neutrons, and electrons occupy the same spaces within the atom. D. Protons occupy the center of an atom, with neutrons and electrons circling.
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What happens to electrons in the photoelectric effect? A. They are knocked away from atoms. B. They are added to atoms. C. They are made to orbit faster. D. They are turned into light.
D?
Yes (:
What was Ernest Rutherford's experiment? A. He measured the bending of a cathode ray caused by electricity. B. He shot tiny alpha particles through a piece of gold foil. C. He measured the electricity produced when light hit metal. D. He suspended tiny drops of charged oil in an electric field.
B?
Correct
What was the significance of Rutherford's experiment? A. He discovered that atoms contained positive and negative charges. B. He discovered that the atom was mostly made up of empty space. C. He discovered that alpha particles did not bounce off of electrons. D. He discovered that not all atoms were the same size.
B?
Yeah, you got it
What did John Dalton publish? A. An explanation of the photoelectric effect B. The plum-pudding atomic theory C. An early theory describing properties of atoms D. A paper calculating the charge of an electron
C?
Yeah, pretty sure thats it (:
What did the early atomic theory accomplish? A. It established the idea that matter cannot be created or destroyed. B. It started scientific thought about the structure of the atom. C. It provided an accurate description of the atom. D. It proved that the atom was the smallest form of matter.
B?
Yeah, sounds about right (: Sorry I didn't reply, I had errands to run
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