Matter

1. Pure Substances

1.1. Compounds

1.1.1. Separated by

1.2. Elements

1.2.1. Atom

1.2.1.1. Parts of an atom

1.2.1.1.1. Nucleus

1.2.1.1.2. Electrons (-)

1.2.1.2. Terms

1.2.1.2.1. Atomic Number

1.2.1.2.2. Atomic Mass

1.2.1.2.3. Isotope

2. Mixtures

2.1. Separated by

2.2. Examples

2.2.1. peanut butter and jelly sandwich

2.2.2. salt water

2.2.3. smoke in air

2.2.4. chocolate milk

2.2.5. metal alloys