L27 Spectral lines

Front

What do the parallel lines in a spectral diagram represent?

Back

Energy levels of the electrons.

Front

What do the arrows pointing down in a spectral diagram indicate?

Back

Electron transition.

Front

What evidence shows that elements emit their own unique color spectrum?

Back

Each gas tube gave off its own unique color and color spectrum when we looked at the light through the spectroscope. None of them were the exact same.

Front

Which element does the unknown emission spectrum belong to if it matches the spectrum of helium?

Back

Helium.

Front

What type of spectrum is generated when light is emitted from an atom?

Back

Emission spectrum.

Front

What is the difference between absorption and emission spectra?

Back

Absorption spectra show dark lines on a continuous spectrum where light has been absorbed, while emission spectra show bright lines at specific wavelengths where light has been emitted.

Front

What is a continuous spectrum?

Back

A continuous spectrum is a range of colors emitted by a light source without any gaps.

Front

What is the significance of spectral lines in identifying elements?

Back

Spectral lines are unique to each element and can be used to identify the presence of that element in a sample.

Front

How does temperature affect the emission spectrum of an element?

Back

Higher temperatures can increase the intensity of the emitted light and may change the wavelengths of the emitted spectral lines.

Front

What is the role of a spectroscope in studying spectral lines?

Back

A spectroscope disperses light into its component colors, allowing for the observation of spectral lines.