Smallest part of an element

• Substance

• Atom

• Mixture

• Density

Uniform throughout. Same properties

• Metalloid

• Compound

• Substance

• Atom

Same type of atom throughout

• Element

• Compound

• Nonmetal

• Physical Change

Two or more elements

• Chemical Change

• Physical Change

• Metal

• Compound

Combining two or more substances. Not chemically

• Metal

• Mixture

• Chemical Change

• Density

Shiny, malleable, good conductors

• Compound

• Metal

• Nonmetal

• Physical Property

Dull, brittle, poor conductors

• Chemical Change

• Atom

• Mixture

• Nonmetal

Have properties of both metals and nonmetals

• Substance

• Metalloids

• Nonmetals

• Element

Substance's mass divided by volume

• Physical Change

• Physical Property

• Density

• Nonmetal

Observed without changing the substance

• Physical Property

• Chemical Property

• Element

• Atom