Using methods similar to Examples 12-10 and 12-11, calculate the density of CsCl. Use 169 pm as the radius of Cs⁺.

Examples 12-10

Use data from Example 12-9, together with the molar mass of Fe and the Avogadro constant, to calculate the density of iron.

Example 12-9

At room temperature, iron crystallizes in a bcc structure. By X-ray diffraction, the edge of the cubic cell corresponding to Figure 12-45 is found to be 287 pm. What is the radius of an iron atom?

Figure 12-45

Examples 12-11

The ionic radii of Na⁺ and Cl^- in NaCl are 99 and 181 pm, respectively. What is the edge length of the unit cell?

Transcribed Image Text:

1√3 1 = 287 pm 1√2 1√3 1 = 287 pm 1√2