Chem Unit 1.1 (Lesson 1)

Atomic Theory and Matter

Matter

anything that has mass or occupies space

Solid

A phase of Matter which has a definite shape and a definite volume

Liquid

A phase of Matter which has a shape that is dependent on its container and a definite volume independent of its container

Gas

A phase of Matter which has no definite volume of definite shape

Condensation

Gas to liquid

Freezing

Liquid to Solid

Deposition

Gas to Solid

Melting

Solid to liquid

Evaporation

Liquid to Gas

Sublimation

Solid to Gas

Non-Newtonian Fluid

Can act as either a solid or liquid depending on the force/pressure applied to them

Atom

Building block of matter

Element

Pure substance that is composed of only one type of atom

Monatomic element

Element is made up of only one atom

diatomic element

Element is made up of two of the same atom

Compound

Pure substance that is composed of two or more different types of atoms

Pure substance

Substance made up of only one element or only on compound

Mixture

When two (pure) substances are mixed together

Heterogeneous mixture

Composition is not uniform

Homogeneous mixture

Composition is uniform

Physical change

a change in the physical properties of the matter without changing the substances in it

Chemical change

A change in the chemical properties of one or more substances. A new substance with new properties is created.

Evaporation

technique used to separate a solid dissolved in a liquid

Distillation

Technique used to separate a mixture of liquids

Filtration

Technique used to separate an undissolved solid in a liquid

Proton

Positively charged, and weigh 1 amu

Neutrons

Neutrally charged, and weigh 1 amu

Electrons

Negatively charged, and weight 0 amu

Subatomic particles

particles that create the structure that hold atoms together