Model 3 shows the energy levels as lithium atoms are brought together to from a

Question

Model 3 shows the energy levels as lithium atoms are brought together to from a solid. In a metal, the various energy bands overlap to give a single energy band that is only partially full of electrons. There are stats with the energies up to the vacuum level, where the electron is free to escape the mental. At absolute zero the energy levels are completely filled from the bottom to a level called the Fermi Energy level. The energy required to liberate an electron from the top of the filled level of electrons is called the work function of the metal. The electrons In the energy band of the metal electrons that become free and able to move in the solid. What do the lines represent in the model? What do the circles represent in the model? Draw a box that encloses all the possible 3s energies at R = a, another box that encloses all the 2p energies, and a third box for all the 2x energies. Shade in the boxes where electrons are in an energy level.

Explanation / Answer

7. The lines represent atomic orbital of each element.

8. The small dots (circles) represents electrons in the Lithium elements

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