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301 Atom & Molecules
Term | Definition |
---|---|
Atoms - | Building blocks of matter |
Elements - | The different types of atoms C, H, O, N, P, and S are all examples |
Molecules - | two or more atoms bonded together |
The lines in molecule diagrams - | Represent bonds |
chemical symbol - | one or two letters that represent an element |
H - | Hydrogen |
O - | Oxygen |
C - | Carbon |
N - | Nitrogen |
P - | Phosphorus |
S - | Sulfur |
CHONPS - | The 6 elements most important in living things (Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorous, Sulfur) |
Number of bonds carbon can form - | four |
When in doubt - | pick carbon! |
organic chemistry - | the study of carbon compounds In other words, the study of molecules that contain carbon |
The numbers in chemical formulas - | Written after the element they refer to |
H2O - | water |
O2 - | oxygen Because it contains two oxygens, it's called molecular oxygen The form oxygen takes as a gas |
CO2 - | carbon dioxide |
di- - | two |
mono- - | one |