Hydrogen Forms Metallic (Interstitial) Hydrides with the D and F

question 75

Multiple Choice

Hydrogen forms metallic (interstitial) hydrides with the d and f transition elements. Which of the following statements is correct?

• A) These substances have distinct stoichiometric formulas like ionic hydrides.
• B) Hydrogen forms bonds with the metals by donating its electron to the valence band of the metal.
• C) Hydrogen molecules and atoms occupy holes within the crystal structure of the metal.
• D) These substances are poor catalysts.
• E) These hydrides are stabilized by hydrogen bonding forces.

Grasp the moral perspectives and obligations presented in "The Singer Solution to World Poverty."

Analyze and critically evaluate arguments in philosophical essays concerning ethical responsibilities to others.

Appreciate the interconnection between personal financial decisions and broader societal impacts.

Differentiate between stage and nonstage theories of development.

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