1. Periodic Table Electronic High School Chemistry

2. Now that you have made a classification table with only 10 elements, imagine trying to keep the 112 naturally occurring elements straight on one page and having that one page tell several pieces of information about each element. This is exactly the problem that early scientists ran into. Electronic High School Chemistry

3. The king of chemical classification is Dimitri Mendeleev. Mendeleev organized the 63 elements that had been identified by 1869 onto a simple chart, forming the basis for the modern periodic table. Do a web search and read about Dimitri Mendeleev. Electronic High School Chemistry

4. Click on the light bulb below to see the periodic table that is used today Electronic High School Chemistry

5. Click on the light bulb below to learn more about subatomic particles, basic structure of an atom, atomic number, mass number, isotopes, Avagadro’s Number, the mole, and atomic weight. Electronic High School Chemistry

6. Click on the diagram of the atom below. Use the periodic table to identify it. Electronic High School Chemistry

7. Click on the diagram of the atom below. Use the periodic table to identify it. Electronic High School Chemistry

8. Click on the diagram of the atom below. Use the periodic table to identify it. Electronic High School Chemistry

9. Click on the diagram of the atom below. Use the periodic table to identify it. Electronic High School Chemistry