Uranium metal heated to 250 to 300 °C (482 to 572 °F) reacts with hydrogen to form uranium hydride. Even higher temperatures will reversibly remove the hydrogen. This property makes uranium hydrides convenient starting materials to create reactive uranium powder along with various uranium carbide, nitride, and halide compounds. Two crystal modifications of uranium hydride exist: an α form that is obtained at low temperatures and a β form that is created when the formation temperature is above 250 °C. COUNT 5
QSN1 At what temperature range in degrees Fahrenheit will uranium metal form uranium hydride? ANS1 482 to 572 QSN2 What does uranium metal react with to create uranium hydride? ANS2 hydrogen QSN3 Above what temperature is the β form of uranium hydride created? ANS3 250 °C QSN4 Along with uranium carbide and halide, what type of compound is often created with uranium hydride? ANS4 nitride QSN5 How many crystal modifications of uranium hydride are extant? ANS5 Two