| Term | Definition |
|
H |
Hydrogen NM |
|
He |
Helium NM |
|
Li |
Lithium |
|
Be |
Beryllium |
|
B |
Boron NM |
|
C |
Carbon NM |
|
N |
Nitrogen NM |
|
O |
Oxygen NM |
|
F |
Fluoride NM |
|
Ne |
Neon NM |
|
Na |
Sodium |
|
Mg |
Magnesium |
|
Al |
Aluminum |
|
Si |
Silicon NM |
|
P |
Phosphorus NM |
|
S |
Sulfur NM |
|
Cl |
Chlorine NM |
|
Ar |
Argon NM |
|
K |
Potassium |
|
Ca |
Calcium |
|
1st Assumption |
All elements are composed of small, indivisible particles called "atoms" |
|
2nd Assumption |
All atoms of the same element have exactly the same properties |
|
3rd Assumption |
Atoms of different elements have different properties |
|
4th Assumption |
Compounds are formed when atoms are joined together. Since atoms are indivisible, they can only join together in simple, whole-number ratios |
|
1 |
mono |
|
2 |
bi |
|
3 |
tri |
|
4 |
tetra |
|
5 |
penta |
|
6 |
hexa |
|
7 |
hepta |
|
8 |
octa |
|
9 |
nona |
|
10 |
deca |
|
The Law of Mass Conservation |
Matter cannot be created or destroyed; it can only change forms |
|
The Law of Multiple Proportions |
If two elements combine to form different compounds, the ratio of masses of the second element that react with a fixed mass of the first element will be a simple whole-number ratio |
|
The Law of Definite Proportions |
The proportion of elements in any compound is always the same |