Ch 3 - 1 YourAnswer natural,inorganic,crystalline, 2...

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1. What are the four criteria used to define a “mineral”? Your Answer: natural, inorganic, crystalline, distinct chemical composition   2. Which of these is not found in the nucleus of an atom? Your Answer: electron   3. All atoms of the same element have the same atomic number. Your Answer: True 4. All atoms of the same element have the same atomic mass. Your Answer: False 5. Positive ions are atoms that have gained electrons during a chemical reaction. Your Answer: False
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6. Atoms of the same element, sodium for example, have the same number of  __________ in the nucleus. Your Answer: protons   7. Ionic bonding is where __________. Your Answer: atoms of different elements, having gained or lost electrons,  form negative and positive ions that are bonded together by  attractive forces between ions with opposite charges   8. Which of these is correct for isotopes of an element? Your Answer: different number of neutrons, same number of protons   9. What physical property denotes the color of a powdered mineral? __________ Your Answer: Streak   10. Match the following aspects of atoms and elements with the appropriate  response. Option Your Answer: 10.1 nucleus     D. tiny, but very massive central part of an atom     10.2 proton     B. massive, positively charged nuclear atomic particle     10.3 electron  
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This note was uploaded on 11/10/2009 for the course GEOL GEOL taught by Professor Drwagner during the Spring '09 term at Maastricht.

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Ch 3 - 1 YourAnswer natural,inorganic,crystalline, 2...

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