Periodic Table

1. Development

1.1. Dimitri Mendeleev

1.1.1. 1869

1.1.2. Listed elements by highest atomic mass

1.2. Moseley

1.2.1. Added atomic # rearrangement

2. Atom

2.1. Nucleus

2.1.1. Protons

2.1.1.1. Positive

2.1.2. Neutrons

2.1.2.1. Neutral

2.2. Electron Cloud

2.2.1. Shells

2.2.1.1. Electrons

2.3. Isotope

2.3.1. # Neutrons

2.4. Ions

2.4.1. Loss or gain electrons

2.4.1.1. Valence Electrons

2.4.1.2. Oxidation Numbers

3. Atomis Symbol

3.1. Atomic Number

3.1.1. Protons

3.1.2. Electrons

3.2. Average Atomic Mass

3.2.1. Decimals

3.2.2. Protons

3.2.3. Neutrons

3.3. Chemical Symbol

4. Energy Levels

4.1. Valence Electrons

4.2. Electron Dot Diagram

5. Organization

5.1. Group/Family

5.1.1. Vertical

5.1.2. Similar Valence Electrons

5.1.3. Similar Chemical Properties

5.2. Periods

5.2.1. Horizontal Rows

5.2.2. Highest Energy Leavel