Electromagnetic Radiation And Atomic Spectra Flashcards

1
Q

What is meant be the range of different wavelengths arranged in order from lowest to highest

A

Electromagnetic spectrum

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2
Q

What in the wavelengths of visible light measured in

A

nm

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3
Q

What is the stream of particles that is absorbed or emitted by electromagnetic radiation?

A

Photons

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4
Q

When a photon is absorbed, is energy gained or lost?

A

Gained

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5
Q

When a photon is emitted, is energy gained or lost?

A

Lost

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6
Q

Higher frequency radiation can transfer higher amount of…

A

Energy

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7
Q

When energy is transferred to electrons, what happens?

A

They are promoted to higher energy levels

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8
Q

What is the evidence for energy levels

A

Light energy emitted by an atom produces a spectrum of discrete lines.

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9
Q

How is an absorption spectrum measured

A

Measuring the intensity of absorbed light varies with wavelength

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10
Q

How are electrons excited

A

High temperatures

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11
Q

When electrons move down energy levels, what are produced

A

Photons

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12
Q

How is the emission spectrum produced

A

Measuring the intensity of emission at different wavelengths

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13
Q

What type of waves do electron acts like in an atom

A

Stationary wave

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