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Titanium: Quiz


Question 1: [4] The oxide was independently rediscovered in 1795 by German chemist Martin Heinrich Klaproth in rutile from ________.

Question 2: [2][3] Of the 801 types of igneous rocks analyzed by the ________, 784 contained titanium.
United States Geological SurveyMinerals Management ServiceUnited States Fish and Wildlife ServiceNational Park Service

Question 3: Naturally occurring titanium is composed of 5 stable ________: 46Ti, 47Ti, 48Ti, 49Ti, and 50Ti, with 48Ti being the most abundant (73.8% natural abundance).
IsotopeStable nuclideAtomTechnetium

Question 4: [3] Titanium metal was not used outside the laboratory until 1932 when William Justin Kroll proved that it could be produced by reducing titanium tetrachloride (TiCl4) with ________.

Question 5: This is condensed and purified by fractional distillation and then reduced with 800 °C molten magnesium in an ________ atmosphere.

Question 6: [3] It is also found in ________ ash, plants, and even the human body.
Wind powerCoalGrid energy storageHydroelectricity

Question 7: [26] It does, however, have a tendency to bio-accumulate in tissues that contain ________.
Silicon dioxideOpalAmethystQuartz

Question 8: [28] Although research continues into more efficient and cheaper processes (e.g., ________), the Kroll process is still used for commercial production.
MagnesiumCalciumFFC Cambridge processTitanium

Question 9: [27] Titanium has the inherent property to osseointegrate, enabling use in ________ that can remain in place for over 30 years.
Dental implantPeriodontologyDentistryOral and maxillofacial surgery

Question 10: [27] Titanium is also used for the ________ used in image-guided surgery, as well as wheelchairs, crutches, and any other products where high strength and low weight are desirable.
VulsellumSurgical stapleSurgical instrumentLaser scalpel


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