L27 Spectral lines

There is an emission spectrum and absoption spectrum shown here. What is the bottom spectrum?

• an emission spectrum
• an absoption spectrum
• neither
• both 

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

The type of spectrum generated here is called...

• absoption
• continuous
• constant
• emission

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

The arrows pointing down represents...

• photon absorption
• proton emission
• electron absorption
• electron transition

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

The parallel lines represents...

• energy levels of the atom
• energy levels of the electrons
• energy levels of the photons
• energy levels of the nucleus

Tags

NGSS.HS-PS1-1

Light is emitted when electrons ...

• jump from high to low 
• jump from low to high 
• either of these
• none of these

Tags

NGSS.HS-PS4-3

What evidence did you observe that proves that elements give off their own unique color spectrum?

• All of the gas tubes produced a full spectrum. (A rainbow.)

• When we looked at white light through a prism, we saw the rainbow.

• 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.

• Each gas tube gave off the same color and color spectrum when we looked at the light through a spectroscope.

Tags

NGSS.HS-PS4-3

NGSS.HS-PS1-2

What evidence indicates that electrons move around the nucleus in definite pathways?

• None of the elements emitted a full color spectrum, but rather only certain frequencies of the spectrum were given off. Since some of the spectrum is missing, this means the electrons can only emit frequencies at the fixed energy levels and not in between.

• None of the elements emitted a full color spectrum, but rather only certain frequencies of the spectrum were given off. Since some of the spectrum is missing, this means the electrons can emit frequencies of light in between the energy levels.

• All of the elements emitted a full color spectrum. (The Rainbow.)

Tags

NGSS.HS-PS4-3

How can scientists use the color spectrum of individual elements to help determine the composition of stars in our galaxy?

• Since each element has its own unique line spectra, it is possible to use a spectrometer to examine the light being emitted by the stars to determine what elements are present?

• Since each element does not have its own unique color spectrum, it is impossible to determine what elements make up our starts.

• Since the stars are so far away, the light we would be studying can not be trusted to determine their composition.

Tags

NGSS.HS-ESS1-2

This device is a

• telescope

• spectrascope

• microscope

• prism

Tags

NGSS.HS-PS4-5

The unknown emissions spectra belongs to the element

• Hydrogen

• Mercury

• Neon

• Helium

Tags

NGSS.HS-PS4-3

NGSS.HS-PS1-1