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Compare how absorption and emission spectrum form (1 Viewer)

smallcattle

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Compare how an absorption and an emission spectrum form and describe what they look like (8marks)

i dont even understand what the question is talking about.....
 

gordo

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talk about bohrs model
electrons absorb and re emit photons, jumping up and down levels, thus the absorption and emssion spectrum are limited to the jumps of h/2pi
 

pc_wizz

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gordo said:
talk about bohrs model
electrons absorb and re emit photons, jumping up and down levels, thus the absorption and emssion spectrum are limited to the jumps of h/2pi
still dont get it ... =/
 

Constip8edSkunk

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in short:

emmision involves losing energy right, so that means electron drop from higher energy levels to lower ones.

absorption means gaining energy, so the energy would cause electrons to jump to higher energy states.

the emissions spectra would contain coloured lines at the frequencies corresponding to the changes down energy levels

absorption spectrum would be a colour spectrum with dark lines at frequencies corresponding to the changes up energy levels
 

pc_wizz

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thankyou! ... u get rep for that =]
 

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