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        | substance that cannot be reduced to a simpler substance by normal forces such as heat, electricity, magnetism, or a chemical reaction |  | 
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        | Term 
 
        | What are the primary functions of: 1. calcium 2. phosphate 3. sodium 4. potassium 5. iron 6. iodine |  | Definition 
 
        | 1. bone structure, regulates intracellular activity 2. bone 3. extracellular ion 4. intracellular ion 5. carries oxygen in the blood 6. thyroid hormone |  | 
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        | Term 
 | Definition 
 
        | They will decay and release particles (beta and alpha) and energy (gamma)  a.k.a Radioactivity |  | 
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        | Term 
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        | Term 
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        | Term 
 | Definition 
 
        | helium nucleus: does more damage than beta because it is a whole helium |  | 
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        | Term 
 
        | If 18F became unstable and decays to release a neutron and a positron, what element would be produced? (9 protons, 9 neutrons --> ?) |  | Definition 
 
        | 8 protons, 10 neutrons= 180 |  | 
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        | Term 
 | Definition 
 
        | neutron released electron that converted to a proton. Proton increases, neutron decreases |  | 
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        | Term 
 | Definition 
 
        | 2 neutrons and 2 protons. |  | 
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        | Term 
 | Definition 
 
        | CO2H2O <--> H2CO3 <--> H+ HCO3 |  | 
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        | Term 
 | Definition 
 
        | unequal number of protons and electrons |  | 
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