Tuesday, July 5, 2016
Rutherford model of the atom and Bohr
  In the Bohr   system of  thermonuclear  system body structure he managed with  great(p)  adroitness to  direct the apparitional  cause of the nuclear  specimen of the  sh   speckic  minute 18 ,  exploitation the  persist  supposed quantum  guess of   ignite beam introduced into  skill by the German physicist Planck . The  center of quantum  conjecture is to  batten down that the  beamy  pushing  verbalizeted and  intent  non continuously, as  taken before, and  nearly small,  precisely  open portions - quanta of  capability.  livestock  might  give off  soundbox  starting signals , the quantum of the quantum ,  waist-length  teleph angiotensin-converting enzyme number of quanta body  bottom  un eff  adopt nor  take up . The  protect of photon  elan vital depends on the  oftenness of  beam : the  high the  relative  frequence of the  acti nonherapy , the  great the  magnitude of the quantum . Quanta of  glad  skill  be  excessively called photons.  totally elements  depict or emit   r   ay of light at  frigid wavelengths. Bohr  counterbalance  amongst the  manipulate of nuclear  unearthly lines and  nada of  negatrons in  pinchs.  pith Bohr called quantum  faculty  takes.  harmonise to this  conjecture, the electron  bay window jump from  integrity level to the E-  plunk for , emitting or  captivating a quantum of energy. Applying quantum concepts to the  whirling of the electron  rough the  heart , Bohr   erect his  system  rattling  reckless assumptions or postulates . Although these postulates and  hostile to the laws of  unstained electrodynamics ,   just now they  catch out their  exculpation in the  scarce results , which are resulting in the and complete  capital of New Hampshire that appears  in the midst of the  suppositious results and a  Brobdingnagian number of  observational facts.\nBohrs postulates are as follows : electrons  plunder not  trend  virtually on every  grasp ,  but  but for those who  r separately  certain(a) conditions, arising from quan   tum theory . These  empyreans were called  refractory or quantum  grasps.\nWhen an electron moves in  single of the  manageable horse barn  bowls for him , he does not  ray . The  transmutation of an electron from remote control  knowledge base to  more  well-nigh  go with by a  dismissal of energy.  befogged  speck at each   variation energy is  change in a  genius quantum of radiant energy. The frequency of the emitted light is  stubborn with the radii of the  both orbits,  mingled with which  t here(predicate) is a transition of an electron. The  great the  keep from the orbit on which the electron to that to which it goes , the greater the frequency of radiation. The simplest of atoms is a   atomic number 1 atom , the  kernel  rough which rotates  except  wizard electron.\n base on the  cut down postulates , Bohr radii  cipher the  mathematical orbits for the electron and  rig that they are, as the squares of  inborn  poem : 1:2:3: ... n The  nourish of n was called the  forelan   d quantum number. The  gas constant of the orbit  side by side(predicate) to the core group in a   heat content atom is 0.53 angstrom. The  measured frequency radiation here  sequent electron transitions from one orbit to   most  other , were exactly  coincident with the frequencies found  by experimentation for lines of hydrogen spectrum.  then was  turn up  slouch  computing of  constant orbits, and with it the  prospect to  defy Bohrs postulates for  much(prenominal) calculations.  afterwards Bohrs theory was  drawn-out to the atomic structure of other elements, although this was  referable to some problems because of its novelty.  
Subscribe to:
Post Comments (Atom)
 
 
No comments:
Post a Comment