Chapter 18, Problem 18.18VP

Interpretation Introduction

To find:

Use representations [A] through [I] in given figure to answer questions a-f.

(a) Two forms of iron are ferrite and austenite. One has a body-centered cubic structure, and the other takes a face-centered cubic structure. Which representations depict these forms of iron?

(b) Two allotropes of phosphorus exist- white phosphorus is a molecular solid whereas red phosphorus is a covalent network solid. Which representations depict white and red phosphorus?

(c) Which representations depict allotropes of carbon?

(d) Which representation depicts the unit cell of $LiCl$? Which of $Ca{F}_2$?

(e) Which representations depict rock salt and fluorite structures?

(f) Which process is depicted in representation [F]?