NAME: ________________________

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5 Written Questions

5 Matching Questions

  1. What is the atomic number?
  2. The bond between the hydrogen atom of one water molecule and the oxygen atom of another water molecule is made possible by
  3. Which part of the atom has the most energy?
  4. How many of the 90 naturally- occuring elements are used by living organisms?
  5. The number of shells an atom has depends on what?
  1. a the polarity of the water molecule
  2. b The number of protons in an atom.
  3. c 25.
  4. d The outer shell.
  5. e the number of electrons it has.

5 Multiple Choice Questions

  1. Solid
  2. Protons and neutrons.
  3. Atoms held together by covalent bonds.
  4. Changes is the chemical compound of matter.
  5. Ionic

5 True/False Questions

  1. The number of covalent bonds an atom can form is equal to what?the number of electrons it has.


  2. What is a neutron?an electronically neutral subatomic particle.


  3. What determines which element it is?the atomic number.


  4. What is a polar molecule?a molecule that has opposite charges on opposite ends.


  5. What is an ionic bond?The attraction btwn opposite charged ions.


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