Basic Chemistry

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Author:
dcauthen86
ID:
100980
Filename:
Basic Chemistry
Updated:
2011-09-10 23:24:25
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Basic Chemistry
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Description:
Chapter 2
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  1. Six Major Elements
    • Hydrogen (H)
    • Carbon (C)
    • Nitrogen (N)
    • Oxygen (O)
    • Phosphorus (P)
    • Sulfur (S)
  2. Trace Elements
    • Sodium (Na)
    • Magnesisum (Mg)
    • Chlorine (Cl)
    • Potassium (K)
    • Calcium (Ca)
  3. What are the three parts of the atom?
    • Protons
    • Neutrons
    • Electrons
  4. Protons are located in the ________ and have a ______________ charge.
    nucleus and have a positive
  5. Neutrons are located in the ___________ and have a ____________ charge.
    nucleus and have a nuetral
  6. Electrons are located in the ____________ and have a ____________ charge.
    orbavlas/ outer rings and have a negative charge
  7. In the innermost orbital there can be ____ number of electrons.
    Two
  8. In the outermost orbital there can be a __ number of electrons.
    Eight
  9. The atomic number is the number of ____ in an atom.
    protons
  10. When the number of protons is equal to the number of electrons the atom has a net charge of ________.
    zero and the atom is neutral.
  11. The atomic mass is the sum of the atoms __________ and ________.
    Protons and neutrons.
  12. Atoms of the same element that had different number of neutrons are called
    Isotopes
  13. To determine the number of neutrons,
    subtract the atomic number from the weight.
  14. When two or more atoms transfer electrons in order to complete the outermost orbital
    Ionic
  15. When an atom has lost or gained electrons
    Ion
  16. the atom has lost electrons and has a positive charge
    Cation
  17. the atom has gained electrons and has a negative charge
    Anion
  18. when two or more atoms share electrons
    Covalent bonds
  19. When electrons are not shared equally among atoms
    Polar
  20. when electrons are shared equally among atoms
    nonpolar
  21. when 1 pair of electrons are being shared between two carbon atoms
    single bonds
  22. when 2 pairs of electrons are being shared
    double bonds
  23. when 3 pairs of electrons are being shared
    triple bonds
  24. when two ore more atoms have been chemically combined together
    Molecues

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