Line Spectrum
They have fixed energy values.
Food on shelves in a refrigerator
Each energy level corresponds to an exact amount of energy needed by the electron to orbit the nucleus. Transitions from a higher energy level to a lower energy level correspond to the difference in the energy needed for an electron to occupy those two energy levels. This difference creates the emission spectrum.
Each electron has its own "address."
Quantized
money and a staircase
I believe it can - the energy of a photon is the product of the frequency and Plank's constant - and as far as I know, the frequency is not quantized.
They have fixed energy values.
a large redshift in the spectrum of the quasar.
what is spectral evidence Spectrum (spectral) refers to different frequencies of light associated with a substance.
what is spectral evidence Spectrum (spectral) refers to different frequencies of light associated with a substance.
The light spectrum can be viewed as a slinky. When compressed, the light waves change to the blue end of the spectrum. When stretched, the the light changes to the red end of the spectrum. Physicists know that our universe is expanding because galaxies further away change to the red end of the spectrum. This means the galaxies were once closer together in the past than what they are now. This is one of the many pieces of evidence that supports the Big Bang Theory.
change
Prism
the line spectrum of the hydrogen spectrum indicates that only certain energies are allowed for the electron of the hydrogen atom. In other words, the energy of the electron in the hydrogen atom is quantized.
The amount of radiation changes across the spectrum.
Quantized. (Number 4 if you are using what I think you are using.)