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5 Written questions

5 Matching questions

  1. The abbreviation for atomic mass unit is
  2. What did Rutherford conclude about the structure of the atom
  3. Because any element used in the cathode produced electrons, scientist concluded that
  4. Which of the following is NOT part of Dalton's Theory? In cheimcal reactions, aroms are combined, seperated, or rearranged.
    All matter is composed of extremely small particles called attoms
    Atoms cannot be divided, created or destroyed
    The number of protons in an atom is its atomic number
  5. The symbol ^19F indicates a fluorine atom that contains
  1. a amu
  2. b The number of protons in an atom is its atomic number
  3. c An atom contains a small, dense, positively charged central region
  4. d all atoms contain electrons
  5. e 9 protons and 10 neutrons

5 Multiple choice questions

  1. nucleus
  2. 40
  3. 27
  4. had a very small mass
  5. relative abundance

5 True/False questions

  1. Who expl;ained the behavior of positively charged particles being delected from a metal foil as the nucleus?passed through the foil


  2. An atom's density is based upon itsabout the same as that of a proton


  3. The nucleus of most atoms is composed oftightly packed protons and neutrons


  4. In a cathode tube, electrical current passes from on electrode, the ____, to the opositely charged electrodeincreases


  5. Most of the volume of an ato is occupied by thetotal number of protons and neutrons