Geology 1110 Exam Questions With Verified Solutions

Geology 1110 Exam Questions With Verified Solutions (1) The number of protons is an element's: - answeratomic number (1) The total number of protons and neutrons is an atoms? - answeratomic mass number (1) An atom that has gained electrons is: - answeran anion (1) An atom that has lost electrons is: - answercation (1) The kind of bonding characterized by sharing electrons is: - answercovalent bonding (1) What is ionic bonding - answeratoms that are attracted to each other because of different charges (1) By definition, minerals are: - answernaturally occurring, solid, inorganic, crystalline structure, specific chemical composition (1) Two most abundant chemical elements in the Earth's crust are: - answeroxygen and silicon (1) What are the most common elements in earths crust? - answeroxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium (1) Isotopes of an element have different number of: - answerneutrons (1) isotopes have the same number of? - answerprotons (1) What mineral can be scratched with a fingernail? - answertalc (1) Which of the listed minerals is harder than quartz? a. calcite b. apatite c. corundum d. orthoclase - answercorundum (1) More than 98% of the earth=s crust is composed of: - answer8 elements (1) The color of a fine powdered (pulverized) mineral on unglazed porcelain is called: - answerstreak (1) Ca-rich plagioclase feldspar and Na-rich plagioclase feldspars are: - answer3-D framework silicates (1) (other silicates: olivine, pyroxenes, amphiboles, quartz, biotite mica, muscovite mica, K- feldspars, etc.) - answer... (1) Micas are: - answersheet silicates (1) Which of the following is a 3-D framework silicate: a. olivine b. hornblende c. quartz d. augite - answerc. quartz (1) What is the name of a mineral which composition is (Mg, Fe) SiO4 and which belongs to isolated tetrahedra silicates a. muscovite b. quartz c. olivine d. pyroxene - answerc. olivine (1) Minerals which contain SO42- group are termed: - answersulfates (1) CaCO3 is the major compound forming a sedimentary rock limestone. When it forms a mineral it is termed .......... - answercalcite (1) Silica tetrahedron is composed of: - answerone ion of silicon and four ions of oxygen (1) Halite, which composition is NaCl belongs to: - answerhalides (2) Which of the following would be the first kind of mineral to crystallize from a magma (think about Bowen=s reaction series)? - answerolivine (2) Which of the following would be the last kind of mineral to crystallize from a magma? - answerquartz (2) Assimilation is the process by which: - answerfragments of wallrock (country rock) are incorporated and melted into magma (2) A rock with ferromagnesian composition and ahpanitic texture is: