{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Eng 45 - Chapter 1 - Structure(30)

Eng 45 - Chapter 1 - Structure(30) - Materials Scien ce...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Materials Science Fall, 2007 Page 29 in the transition metals can be described reasonably well in this way. The valence electrons, on the other hand, are so heavily concentrated in the interstitial spaces between atoms that it is not useful to model them in terms of the atomic states. The most useful model for the valence electrons is the nearly free electron model in which the electrons behave as if they were almost free to move through the solid, but are slightly perturbed by their electrostatic interaction with the ion cores. We shall not discuss these models in detail here, though we shall return to the nearly free electron model when we discuss the electromagnetic properties of solids. However, it is important to recognize some of the important qualitative implications of the band model for the type of conduction and the nature of interatomic bonding in solids. 2.4.4 The band model of conductor type Once the available electron states have been identified, the ground state of the
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern