Emission Spectra

Which of the following would give a continuous spectrum? (check all that apply)

• hydrogen lamp

• the sun

• neon lights

• white light bulbs

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Which part of the electromagnetic spectrum is emitted by the sun?

• only visible light

• only yellow light

• visible light and ultra violet light

• the entire electromagnetic spectrum

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NGSS.MS-PS4-1

Why do the spectra of individual elements only have certain bands of colors?

• they don't have enough electrons

• not all of the electrons are changing energy levels

• electrons are only allowed to have certain energies

• some electrons are moving up levels while some are moving down

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Atoms emit light when...

• electrons move down to lower energy levels

• electrons move up to higher energy levels

• electrons move in circular orbits around the nucleus

• electrons crash into the nucleus

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NGSS.HS-PS4-3

Which element had spectral lines at roughly 575 nm, 548 nm, 430 nm?

• Hydrogen

• Helium

• Neon

• Mercury

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NGSS.HS-PS4-1

Which element had spectral lines at roughly 655 nm, 490 nm, 430 nm?

• Hydrogen

• Helium

• Neon

• Mercury

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NGSS.HS-PS4-3

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Which element had the most spectral lines in the red region?

• Hydrogen

• Helium

• Neon

• Mercury

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NGSS.HS-PS4-3

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Which color has the highest energy?

• red

• yellow

• green

• violet

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NGSS.HS-PS4-3

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 $c=\lambda\nu$  
Think about the above equation. Which statement describes the relationship between wavelength and frequency?

• as wavelength increases, frequency decreases

• as wavelength increases, frequency increases

• wavelength and frequency have no relationship

• wavelength only impacts energy, not frequency

Tags

NGSS.HS-PS4-1