参见量子力学中原子的模型，表示电子的轨道或壳层（几率分布）
Different energy states of electrons are expressed by different quantum numbers.
The electrons in an atom are characterized by a principal quantum number n,
an orbital angular momentum l, the orientation of the angular momentum vector
m, and a spin quantum number s. A tradition from the early days of line-series allocation
has established the following method of designating individual electronic
orbits: a number followed by a letter symbolizes the principal quantum number n
and the angular momentum number l, respectively. The letters s, p, d, f stand for
l = 0, 1, 2, 3, respectively. For example, a 3d electron is in an orbit with n = 3
and l = 2. |
发表于 2011-9-25 08:49:20