Just like with the ionization energy there's a discrete energy jump involved with the adding of an electron.

就像电离能一样， 有一个离散的能量跃迁涉及到一个电子的添加。

Bohr proposed that electrons occupied discrete energy levels, or " orbits, " and could transition between them by absorbing or emitting precise amounts of energy as light.

玻尔提出，电子占据离散的能级或“轨道”，并且可以通过吸收或发射精确数量的光能量在它们之间进行跃迁。