ATOMIC STRUCTURE

ATOMIC STRUCTURE

1. 1- Evolution of the atomic model

   • 1.1. Some early ideas on matter
     • 1.1.1- Continuous: Aristotle and Empedocles.
       • 1.1.2- Discontinuous: Democritus
   • 1.2. Dalton's atomic model
   • 1.3. Crooke's tube
   • 1.4.The electron discovery experiment
     • 1.4.1 Thomson's experiment
       • 1.4.2 Plum pudding model
   • 1.5. The charge of the electron
   • 1.6. Gold foil experiment
   • 1.7. Bohr's atomic model
   • 1.8. Discovery of the neutron(1932)
   • 1.9. Charge-cloud model
   • 1.10. The Standard model
     • 1.10.1 Describes how the fundamental particles affect each other

2. 2- Particles in the atom

   • 2.1-Particles
     • A particle is a minute fragment or quantity of matter
   • 2.2-Isotopes
     • Isotopes are atoms of the same element that have the same atomic number but different mass numbers. Ex: isotopes of hydrogen

3. 3- Periodic table

   • 3.5 Trends in the periodic table
     • 1- Ionization energy
       • 2- Electron affinity
         • 3- Atomic radius
           • 4- Electronegativity
             • 5- Metallic and non-metallic characteristics
   • 3.4 Top ten: elements in human body
   • 3.3 Periodic patterns
   • 3.2 Electron configuration
   • 3.1 History of the periodic table

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