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 a. Number of electron shells (orbitals) b. Atomic number c. Mass number d. Number of neutrons e. Number of electrons in their outermost shells 5. Almost all of the mass of an atom exists in its a. First quantum shell (orbital) b. Outermost electron shell (orbital) c. Combined electron shells (orbitals) d. Nucleus
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52.100 Exam 1A Page 3 6. In the following atomic symbol, the number 130 represents 130 52 Te a. Neutrons b. Protons c. Electrons d. Neutrons and protons e. Isotopes 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 a. 40 b. 50 c. 60 d. 20 e. 35 9. The element Magnesium, Mg has how many valence electrons a. 7 b. 5 c. 3 d. 2 e. 1 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 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 a. 106 b. 46 c. 27 d. 56 e. 92 13. The number of electrons in the first quantum shell of an atom of oxygen is a. 0 b. 2 c. 4 d. 6 e. 8 14. In every chemical reaction between atoms, the atoms react with each other in order to a. Transfer electrons from the valence shell of one atom to the valence shell of another atom b. Share electrons between the valence shells of different atoms c. Move electrons from a lower shell of one atom to the valence shell of another atom d. Move electrons from the valence shell of one atom to a lower shell of another atom e.
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This note was uploaded on 04/03/2008 for the course CHEM 101 taught by Professor Hawrelak during the Fall '07 term at Bloomsburg.

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

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