It14spr101.40Ach2t1,2,3

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Anonymous
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256672
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It14spr101.40Ach2t1,2,3
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2014-01-15 15:40:46
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Profmwinston
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Topics 1,2,3
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  1. Anything that has weight and takes up space. It is composed of elements.
    Matter
  2. The study of composition of substances and how they change.
    Chemistry
  3. Is the study of chemistry in living organisms.
    Biochemistry
  4. Composed of chemically identical atoms.
    Elements
  5. Particle formed when two or more atoms of different elements chemically combine.
    Compounds
  6. Required by the body in Large amounts.
    Bulk Elements
  7. Required by the body in Small amounts.
    Trace Elements
  8. Required by the body in very minute amounts.
    Ultratrace Elements
  9. Smallest part of an element.
    Atom
  10. Form when atoms combine with other atoms.
    Chemical Bonds
  11. Central portion of atom contains protons and neutrons. Has no weight.
    Nucleus
  12. Located circling around the nucleus. Carry a negative charge.
    Electrons
  13. Located in the central portion of atom. Carry a positive charge.
    Protons
  14. Located in the center of an atom. Are electrically neutral.
    Neutrons
  15. The number of protons in the atoms of a particular element.
    Atomic Number
  16. Number of protons plus the number of neutrons in each of an elements atoms.
    Atomic Weight
  17. Atoms that have the same atomic numbers but different atomic weights. Different neutrons. EX: Oxygen, Iodine, Iron.
    Isotopes

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