CHEM 1301 Chapter Notes - Chapter 5.1: Principal Quantum Number, Lattice Energy, Effective Nuclear Charge

• School: University of Manitoba
• Department: Chemistry
• Course: CHEM 1301
• Professor: Sarrah Vakili

Document Summary

Omit the born-haber cycle and the calculations of lattice energy in sections 5. 4-5. 5. Self study: focus 5-1 tools for discovery: photoelectron spectroscopy, section 5. 6. The electrons in a many-electron atom occupy the orbitals similar to those of a hydrogen atom, however the energies are not the same. We will consider the differences in orbital energies between: a single electron species and, multi electron species. The orbital energy calculations based on the schrodinger equation are only totally correct fro a single electron atom. 1s < 2s = 2p < 3s = 3p < 4s = 4p = 4d = 4f < In the ground state, the electron resides in the 1s orbital. When a hydrogen atom absorbs light, the energy of the photon converts it from the ground state to an excited state. In the process, its electron transfers to an orbital that is larger and less stable. Hydrogens single electron can occupy any of its atomic orbitals.