Steel is an alloy consisting of Fe with a small amount of C

Last updated: 5/1/2023

Steel is an alloy consisting of Fe with a small amount of C Elemental Cr can be added to steel to make the steel less likely to rust Cr atoms react with oxygen in the air to form a nonreactive layer of chromium oxide on the surface of the steel preventing the oxidation of underlying Fe atoms A sample of steel chromium alloy contains 15 percent Cr by mass Which of the following diagrams best shows a particle level view of a surface section and an interior section of the alloy represented below at the left The atomic radii of the atoms involved are given in the table below at the right Surface Fel Fe Interior Element Fe Cr C O Molar Mass g mol 55 85 52 00 12 01 16 00 Atomic Radius pm 125 127 77 73