Electrons and Light

Front

What is emitted when an electron returns to its ground state?

Back

Photon (light)

Front

What type of spectrum is produced when an element emits light?

Back

Emission spectrum

Front

What do emission spectra produce when viewed through a spectroscope?

Back

Bright lines

Front

What must an electron do to change from ground state to an excited state?

Back

Absorb energy

Front

What is the term for the lowest energy state of an electron?

Back

Ground state

Front

What is the term for the higher energy state of an electron?

Back

Excited state

Front

What is the relationship between energy absorption and electron excitation?

Back

Electrons must absorb energy to move to an excited state.

Front

What is the difference between emission and absorption spectra?

Back

Emission spectra show bright lines on a dark background, while absorption spectra show dark lines on a continuous spectrum.

Front

What is a spectroscope used for?

Back

To analyze the light emitted or absorbed by substances.

Front

What happens to an electron when it emits a photon?

Back

It returns to a lower energy state.