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5 Written questions

5 Matching questions

  1. What are elements?
  2. What is the atomic number?
  3. The bond between the hydrogen atom of one water molecule and the oxygen atom of another water molecule is made possible by
  4. What is a radioactive isotope?
  5. What is an electron?
  1. a Substances that cannot be broken down into other substances.
  2. b the polarity of the water molecule
  3. c A subatomic particle w/ a negative charge.
  4. d The number of protons in an atom.
  5. e is one in which the nucleus decays, giving off particles of energy.

5 Multiple choice questions

  1. the number of electrons it has.
  2. cohesion
  3. A compound held together by ionic bonds.
  4. 25.
  5. Solid
    Liquid
    Gas

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 makes up the nucleus?Substances that cannot be broken down into other substances.

          

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

          

  4. What is a neutron?A subatomic particle w/ a negative charge.

          

  5. What is a hydrogen bond?Forms when 2 atoms share 1 or more pairs of outer shell electrons and forms a molecule.

          

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