52_100_E1C_key_F07

52_100_E1C_key_F07 - Chemistry for the Citizen Exam 1C...

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52.100 Exam 1C Page 1 Chemistry for the Citizen Exam 1C Tuesday September 18, 2007 Name: _______________________________________ Tear off this page and turn it in with your scantron sheet. Also write the form of your exam on the bottom of your scantron sheet.
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52.100 Exam 1C Page 2 1. The elements Lithium, Li, Sodium, Na, Potassium, K, Rubidium, Rb, and Cesium, Cs are known as a. Alkali metals b. Alkaline Earth metals c. Halogens d. Chalcogens e. Nobel gases 2. Of the following, the particle that carries no electrical charge is 3. Two atoms must represent the same element if they both have the same 4. Almost all of the mass of an atom exists in its 5. How many neutrons are in the following atom 88 38 Sr a. 40 b. 88 c. 60 d. 50 e. 38
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52.100 Exam 1C Page 3 6. In the times of antiquity, scientist did not understand the concept of elements and atoms as we know them today. The four elements of antiquity were a. Flame, water, earth, gas b. Cold, warm, light, dark c. Rock, land, water, sky d. Water, air, fire, earth 7. The region within an atom in which the electron can be found is known as 8. How many protons does the element Palladium, Pd contain 9. The element Nitrogen, N has how many valence electrons 10. While the mass of an atom is defined by the combined number of protons and neutrons in an atom, the electrons helps to define the _________ of an atom a. Stability b. Reactivity c. Radioactivity d. Natural state
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52.100 Exam 1C Page 4 11. How many electrons are in a Sodium, Na cation
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