EL 2- How do we know so much about outer space?

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  • Created by: Megan2413
  • Created on: 16-07-17 12:40
What is the order of the electromagnetic spectrum?
Radiowaves, microwaves, infrared, visible light, ultraviolet, X-rays, gamma-rays
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Describe what an absorption spectra looks like?
Colour background with black lines corresponding to the absorbed frequencies
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What happens to electrons in an element when they absorb certain frequencies of visible light?
Their electrons get excited and move to higher energy levels
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What happens to the extra energy absorbed?
It is emitted
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What does the emission spectra look like?
Coloured lines on a black background corresponding to the emitted frequencies
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What is the emission spectrum of hydrogen in the visible light region known as?
The balmer series
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What is the hydrogen emission spectrum in ultraviolet region known as?
The lyman series
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How can an element be identified from its absorption/emission spectra?
It is characteristic to each element as they all absorb/emitt certain frequencies of radiation
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Other cards in this set

Card 2

Front

Describe what an absorption spectra looks like?

Back

Colour background with black lines corresponding to the absorbed frequencies

Card 3

Front

What happens to electrons in an element when they absorb certain frequencies of visible light?

Back

Preview of the front of card 3

Card 4

Front

What happens to the extra energy absorbed?

Back

Preview of the front of card 4

Card 5

Front

What does the emission spectra look like?

Back

Preview of the front of card 5
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