M.CHOIRUMAN EFENDI. Powered by Blogger.
RSS

Atomic J. J. Thomson

Atomic theory of J. J. ThomsonBased on the discovery of a better cathode tubes by William Crookers , then JJ Thomson researching more about cathode rays and it is certain that the cathode rays are particles , because they can rotate the propeller is placed between the cathode and anode . From the results of this experiment , Thomson stated that cathode rays are subatomic particles ( subatomic particles ) and the negatively charged electron hereinafter .Atoms are neutral particles , because electrons are negatively charged , then there must be another positively charged particles to menetrallkan negative charge of the electron . From these discoveries , Thomson rectify the shortcomings of Dalton 's atomic theory and atomic theory put forward known as Thomson Atomic Theory . Which states that :" Atom is a solid ball is positively charged and negatively charged electrons scattered therein "The atomic model can be described as guava skin that has been exfoliated . guava seeds are dispersed uniformly describe electrons in the solid pink meat balls , which is analogous to the Thomson model of the atom as a positive ball solid . Thomson model of the atom can be described as follows :






                                                                 
thomson atomic

weaknesses :The weakness of the Thomson atomic model can not explain the arrangement of positive and negative charges within the atomic sphere .

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

0 komentar: