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20 True/False questions

  1. Which of the following is correct for isotopes of the same element?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.


  2. Which of the following minerals is in the mineral group known as mica?muscovite


  3. How do the electrons behave in a mineral with metallic bonding?They can move relatively easily from atom to atom inside the mineral.


  4. Which of the following is an accurate description of ionic bonding?The atoms have different numbers of neutrons and the same number of protons.


  5. Which mineral is composed of silicon dioxide (Si02)?quartz


  6. Which of the following minerals is a silicate?gold


  7. The strong tendency of certain minerals to break along smooth, parallel planes is known as ________.muscovite


  8. Ruby and sapphire are red and blue forms of the mineral ________.4 oxygen ions


  9. Which one of the following is a sodium and calcium feldspar with twinning striations?selectron


  10. What mineral is the hardest known substance in nature?diamond


  11. The ion at the center of a silicate tetrahedron is surrounded by ________.4 oxygen ions


  12. Which of the following is not a fundamental particle found in atoms?selectron


  13. Which of the following has the highest specific gravity?gold


  14. A cubic centimeter of quartz, olivine, and gold weigh 2.5, 3.0, and 19.8 grams respectively. This indicates that


  15. Which one of the following mineral groups exhibits a sheet-like silicate structure?clays


  16. Which one of the following describes a mineral's response to mechanical impact?cleavage


  17. In which type of chemical bonding are electrons shared between adjacent atoms?muscovite


  18. Which carbonate mineral reacts readily with cool, dilute hydrochloric acid to produce visible bubbles of carbon dioxide gas?quartz


  19. Which of the following describes the light reflecting and transmission characteristics of a mineral?luster


  20. Which of the following denotes the purity of gold used in jewelry?karat