2-chemout - Ag 3: Plant Biology - Chemical & Physical...

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I. the Universe A. Energy Laws of Thermodynamics 1st 2nd 2 kinds of energy potential kinetic B. Matter 1. element 1) compounds 2) mixtures 2. ~114 different elements radioactive decay 3. What do the elements look like? 4. Is there some particular order to the elements? Mendeleev biologically important elements. II. Atom A. sub-atomic particles 1. nucleus a. b. 2. electron cloud a. b. B. What are the properties of these sub-atomic particles? particle charge mass (Atomic Mass Unit)
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proton neutron electron C. How do we have over 100 different things using the same 3 types of subatomic particles? 1. Top # 2. Atomic symbol 3. Bottom # D. Let’s see what this information tells you: 1. Hydrogen 2. Helium 3. Rows: 4. Columns: inert/noble gases 5. Atomic Mass is an average, but of what? isotopes radioactive isotopes 6. most important to life III. Chemical Bonds A. Compounds molecule.
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2-chemout - Ag 3: Plant Biology - Chemical & Physical...

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