- #1
annaphys
- 69
- 1
I'm a bit confused as to what is meant by Professor Simon in is textbook Oxforc Solid State Basics. I attached a photo of the page (number 213).
Here is my confusion:
"In this case, the electrons see the full charge of the nucleus and bind more strongly, thus lowering their energies."
Binding increased -- makes sense as there is no effective charge. But how can "their" energies be lower? What does that even mean? Since they are more strongly attached, the energy of the system is higher.
How can the binding energy be reduced of one electron down and the other up all the while increasing the total energy of the atom? If one of the atoms sees an effective charge, then it is easier to ionize the atom than if the two electrons had the same spin.
Here is my confusion:
"In this case, the electrons see the full charge of the nucleus and bind more strongly, thus lowering their energies."
Binding increased -- makes sense as there is no effective charge. But how can "their" energies be lower? What does that even mean? Since they are more strongly attached, the energy of the system is higher.
How can the binding energy be reduced of one electron down and the other up all the while increasing the total energy of the atom? If one of the atoms sees an effective charge, then it is easier to ionize the atom than if the two electrons had the same spin.