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Chapter 22: Problem 25

Identify the following hydrides as ionic, metallic, or molecular: (a) \(\mathrm{BaH}_{2},(\mathbf{b}) \mathrm{H}_{2} \mathrm{Te},(\mathbf{c}) \mathrm{TiH}_{1.7.\)

Short Answer

Expert verified
The hydrides and their type are: a. \(\mathrm{BaH}_2\): Ionic hydride b. \(\mathrm{H}_2\mathrm{Te}\): Molecular hydride c. \(\mathrm{TiH}_{1.7}\): Metallic hydride

Step by step solution

01

Analyze the elements in each compound

We need to understand the elements involved in the compounds to identify the type of hydride. Let's analyze the elements present in each compound. a. In \(\mathrm{BaH}_2\), \(\mathrm{Ba}\) is a metal (Barium), from group 2 in the periodic table, and \(\mathrm{H}\) is Hydrogen. b. In \(\mathrm{H}_2\mathrm{Te}\), \(\mathrm{Te}\) is a nonmetal (Tellurium), from group 16 in the periodic table, and \(\mathrm{H}\) is Hydrogen. c. In \(\mathrm{TiH}_{1.7}\), \(\mathrm{Ti}\) is a transition metal (Titanium), from group 4 in the periodic table, and \(\mathrm{H}\) is Hydrogen.
02

Identify the type of hydride for each compound

Now we can use the general characteristics of each type of hydride to identify the type of hydride for each compound. a. \(\mathrm{BaH}_2\): Since Barium is a metal and it bonds with Hydrogen, we conclude that this hydride is ionic. b. \(\mathrm{H}_2\mathrm{Te}\): Since Tellurium is a nonmetal and it bonds with Hydrogen, we conclude that this hydride is molecular. c. \(\mathrm{TiH}_{1.7}\): Since Titanium is a transition metal and it bonds with Hydrogen, we conclude that this hydride is metallic. So, the hydrides and their type are: a. \(\mathrm{BaH}_2\): Ionic hydride b. \(\mathrm{H}_2\mathrm{Te}\): Molecular hydride c. \(\mathrm{TiH}_{1.7}\): Metallic hydride

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