1. Nature of Matter
Chapter 2
Section 2.1

2. States of MATTER
The FIVE different forms in which matter can exist (Solid, Liquid, Gas, Plasma, Bose-Einstein Complex)
Solid: matter that has definite shape and volume
Liquid: matter that flows, has a fixed volume, and takes the shape of its container
Gas: matter that takes both the shape and volume of its container

3. Define the following terms:
substance – a sample of matter having a constant (uniform or definite) composition. It can be either an element or a compound.
element
compound
atom
molecule
allotropes

4. Define the following terms:
substance
element – a substance that cannot be decomposed (broken down) into simpler substances by ordinary chemical or physical means. It consists of atoms all having the same atomic number.
88 naturally occurring
Element names known to ancients: Au, Ag, Cu, Fe, C, S, Pb
compound
atom
molecule
allotropes

5. Define the following terms:
substance
element
compound – a substance with constant composition that can be broken down into elements by chemical processes.
atom
molecule
allotropes

6. Define the following terms:
substance
element
compound
atom – smallest particle of an element that retains the properties of that element; the fundamental unit of which elements are composed.
molecule
allotropes

7. Define the following terms:
substance
element
compound
atom
molecule – a bonded collection of two or more atoms of the same element or different elements. A representative particle of a molecular compound. (Br2, CH4).
allotropes

8. Define the following terms:
substance
element
compound
atom
molecule
allotropes - different physical forms of the same element (e.g. carbon – diamond, graphite, Buckminster fullerenes)

9. Gas
Gas
Gas
100 ºC
Liquid
Liquid
Liquid
0 ºC
Solid
Solid

10. Phase Diagram
K.E.
Gas
P.E.
K.E.
Liquid
P.E.
K.E.
Solid

11. Kinetic Molecular Theory Video

12. Homework Read Sections 2.1 and 2.2
Answer Review Questions (pgs. 30, 34)