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52_100_E1A_Key_F07

52_100_E1A_Key_F07 - Chemistry for the Citizen Exam 1A...

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52.100 Exam 1A Page 1 Chemistry for the Citizen Exam 1A 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 1A Page 2 1. 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 2. The elements Fluorine, F, Chlorine, Cl, Bromine, Br, and Iodine, I are known as: a. Chalcogens b. Halogens c. Alkali Metals d. Alkaline Earth Metals e. Noble Gases 3. The smallest, electrically neutral particle of an element that can be identified as that element is a. A proton b. A neutron c. A molecule d. An atom e. An electron 4. Two atoms must represent the same element if they both have the same 5. Almost all of the mass of an atom exists in its
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52.100 Exam 1A Page 3 6. In the following atomic symbol, the number 130 represents 130 52 Te 7. The region within an atom in which the electron can be found is known as a. Nucleus b. Orbital c. Isotopes d. Pockets 8. How many electrons are contained in a neutral Zirconium, Zr atom 9. The element Magnesium, Mg 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
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52.100 Exam 1A Page 4 11. How many electrons are in a Bromide, Br anion a. 35 b. 34 c. 36 d. 33 e. 0 12. How many protons does the element Palladium, Pd contain
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