Answers

2016-05-08T09:03:31+05:30
Bohr's atomic theory -- 

Bohr experimented on electron arrangement using the spectra of elements but mostly hydrogen in particular. 

* Bohr proposed that electrons in atoms can move in certain number of allowed energy levels

* Electrons can change energy levels by gaining energy but cannot remain between levels 

* Energy that is given off is equal to the difference in distance between the 2 energy levels. 
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