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Flashcards: Chemistry Module 3

Instructions

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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