4.3.3.1 So­lu­tion hydc-a

Ques­tion:

If there are in­fi­nitely many en­ergy lev­els $E_1$, $E_2$, $E_3$, $E_4$, $E_5$, $E_6$, ..., where did they all go in the en­ergy spec­trum?

An­swer:

The $E_n$ for large val­ues of $n$ are all graph­i­cally in­dis­tin­guish­able from zero en­ergy. The elec­tron is al­most free from the nu­cleus in those en­ergy states.