ATOM week 1

ATOM week 1

1. The Greek atom

   • John Dalton's atomic theory: atoms=tiny particles that make up elements; can't be divided; all atoms of a given element are the same but different from other elements;
     • JJ Thompson: discovered electron - cathode rays; plum-pudding atom
       • Ernest Rutheford - alfa particles; tiny ; nuclear atomnucleus
         • Bohr-orbitals' planetary atom, Rutheford - discovered proton; de Broglie - particles as waves and particles; Scrodinger: elelectron has wave properties; Chadwick - neutron

2. PROTONS

3. Electrons

4. Neutrons

5. Isotopes; different masses; different number of n;

6. Atomic structures of ions

7. Atomic masses; mass of an atom of C12=12u; 1u=1.66x10-27kg; 1u=1/12 of C12

8. Relative isotopic mass and Relative atomic mass Ar; Relative molecular mass Mr, Relative formula mass

Images and files in the map