Energy & Level Spectra Flashcards
What do electrons do when jumping between energy levels
Either absorbs or emits energy
What is the ionisation energy level
0 eV
What is the ground state
The lowest possible energy state of an atom
Negative
What is the excited state
When an atom’s electron moves to a shell of a higher energy level than the ground state
How do electrons get to a higher energy level shell
When an atom absorbs enough energy
When are photons absorbed
If their energy is the same as a jump from one energy shell to another
Or they have enough energy to remove the electron from the atom (ionisation)
What are photons emitted with
The energy difference between the two energy levels the electron has moved between
When can an electron absorb a photon and move to a higher energy level
If the energy of the photon is exactly equal to the energy difference between two energy levels in the atom
