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What is an emission spectrum?

• A unique pattern of light emitted by an element when its electrons return to lower energy levels

• The absorption of light by an element

• The reflection of light from a surface

• The splitting of white light into colors

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Which element's emission spectrum is often used as a standard in laboratories?

• Oxygen

• Hydrogen

• Carbon

• Nitrogen

What causes the emission spectrum in atoms?

• Electrons moving to higher energy levels

• Electrons returning to lower energy levels

• Protons moving in the nucleus

• Neutrons being released

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NGSS.HS-PS4-3

What is the main characteristic of an element's emission spectrum?

• It is the same for all elements

• It is unique for each element

• It is only visible in the dark

• It is always red in color

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NGSS.HS-PS4-3

Which color is NOT typically seen in the visible hydrogen emission spectrum?

• Red

• Blue

• Green

• Orange

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NGSS.HS-PS4-3

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What is the name of the series of visible lines in the hydrogen emission spectrum?

• Lyman series

• Balmer series

• Paschen series

• Brackett series

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Which subatomic particle is directly involved in producing an emission spectrum?

• Proton

• Electron

• Neutron

• Positron

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NGSS.HS-PS1-1

What happens to an electron in an atom when it emits light?

• It moves to a higher energy level

• It moves to a lower energy level

• It leaves the atom

• It becomes a proton

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NGSS.HS-PS4-3

Which element has a more complex emission spectrum: hydrogen or helium?

• Hydrogen

• Helium

• Both are the same

• Neither has an emission spectrum

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NGSS.HS-PS4-3

NGSS.HS-PS1-2

What is the simplest atom that produces an emission spectrum?

• Helium

• Hydrogen

• Lithium

• Oxygen

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