10.28conduction - E45 Lecture 10/28/09 Click to edit Master...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Click to edit Master subtitle style E45 Lecture 10/28/09
Background image of page 1

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

View Full DocumentRight Arrow Icon
Conduction in metals
Background image of page 2
Li: 1s2 2s1 2s 1s Nucleus, charge of +3e E=0 2s 1s Metallic Bonding
Background image of page 3

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

View Full DocumentRight Arrow Icon
Li2 Former 2s electrons of two Li atoms Energy Atomic orbitals Atomic orbitals Molecular orbital of Li2 E = 0 The two electrons that formerly occupied 2s1 atomic orbitals now spend a considerable amount of time in the space between the two nuclei. The two electrons ow occupy a molecular orbital. The two electrons in the molecular bond are shared by the two nuclei. Each e added to a solid adds an energy level and each electron occupies the lowest available energy level Metallic Bonding
Background image of page 4
1s2 Location of three electrons in molecular bond of Li3 Li3 Metallic Bonding
Background image of page 5

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

View Full DocumentRight Arrow Icon
E=0 MO* 2s of Li atom MO Molecular orbital of Li 2 1s 2 Li 2 Li 3 Li 4 Li N Figures 7-10. Energy levels of Li 2 , Li 3 , Li 4, and Li N , where N is a very large number. There is a maximum of 2 electrons in each level. The energy values between Mo and MO* form the energy band of the crystal of Li. Electrons in the crystal of Li may possess any energy value between MO and MO*. At equilibrium, the electrons will
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 17

10.28conduction - E45 Lecture 10/28/09 Click to edit Master...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online