Unit 3 Atoms and the Periodic Table

The Periodic Table has its origins in the nineteenth century when a Russian Chemist named Dmitri Mendeleev organized the known elements of the time into groups by their atomic masses and properties. In the twentieth century, Henry Moseley realized that elements should actually be arranged by their atomic numbers due to the fact that each element differed by only one proton as they progressively got larger in size and mass.

Finish Isotopes and Atomic Mass Lab - Results/Analysis Section

1) Do the following Activity

Build an Atom Simulation submit through Google classroom due Wednesday 3/18/20

2) Write the following notes about the Periodic Table (pay close attention to the valence electrons parts)

Periodic Table Notes Google slides

Periodic Table Note sheet to fill in

Blank Periodic Table to fill in if you forgot yours (Also available on Google Classroom)

Need to print it out or try to fill it in Docs

1) Getting to know the Periodic Table

2) Print these notes out and do the practice energy level diagrams & formulas at the end:

Oxidation Numbers and Chemical Formulas You can also find these on Classroom Unit 3 Atoms and the Periodic Table

3) Watch these videos Tyler Dewitt Valence Electrons and the Periodic Table