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chemistry ch 1-2

  1. form of matter with unique properties that make it different from every other substance
    substance
  2. substance that cannot be broken down into simpler substances by ordinary chemical means
    elements
  3. anything that occupies space and has mass
    matter
  4. energy of motion
    kinetic energy
  5. substance that can be decomposed by chemical means into simpler substances
    compound
  6. 7 diatomic elements
    • Hydrogen         HNOFClBrI
    • Nitrogen
    • Oxygen
    • Florine
    • Chlorine
    • Bromine
    • Iodine
  7. a phenomenon that consists of electrons flowing between electrodes in a vacuum tube
    cathode rays
  8. what value is the number nucleons in an atom
    mass number
  9. atoms of the same element that have different numbers of nucleons
    isotopes
  10. number of protons in the nucleus
    atomic number
  11. who created the planetary model of an atom
    Rutherford
Author
Rayna
ID
341754
Card Set
chemistry ch 1-2
Description
A Beka 12th grade chemistry
Updated

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