- #1
quietrain
- 655
- 2
hi,
why are the energy levels of electrons in say a hydrogen atom -13.6ev, -3.4 eV etc ?
i thought energy is always positive? what does the negative mean?
thanks!
why are the energy levels of electrons in say a hydrogen atom -13.6ev, -3.4 eV etc ?
i thought energy is always positive? what does the negative mean?
thanks!