The Bohr model represents an atom. The representation states that the atom has a positively charged nucleus surrounded by electrons. These electrons travel in a circular orbits around the nucleus. These electrons circulate according to gravity. Electrons can only stay in specific energy levels or orbits with energy being added to the atom. Electrons can only gain and lose energy by jumping from one allowed orbit to another, absorbing or emitting electromagnetic radiation with a frequency v determined by the energy different of the levels. This can be seen in Planck’s relationship:
∆E= E_2- E_1=hv
Where h is Planck’s constant and v is:
v= 1/T
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