例文
- For example, the orbital 1s 2 ( pronounced " one ess two " ) has two electrons and is the lowest energy level ( ) and has an angular quantum number of.
- Nuclei in states with non-spherical charge distributions, i . e . all those with angular quantum number ( " I " ) greater than 1 / 2, produce an asymmetrical electric field ( produced by an asymmetric electronic charge distribution or ligand arrangement ) which splits the nuclear energy levels.