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5 Written questions

5 Matching questions

  1. What is an ionic bond?
  2. What is a molecule?
  3. What is ion?
  4. What is an ionic compound?
  5. What are isotopes?
  1. a A compound held together by ionic bonds.
  2. b The term for atoms that are electronically charged as a result of gaining/losing electrons.
  3. c Elements that exist in different forms
    Forms of an element that differ in mass
    Same num of protons and electrons but diff num of neutrons
  4. d Atoms held together by covalent bonds.
  5. e The attraction btwn opposite charged ions.

5 Multiple choice questions

  1. a molecule that has opposite charges on opposite ends.
  2. The sum of the number of protons and neutrons in its nucleus.
  3. A subatomic particle w/ a negative charge.
  4. The number of protons in an atom.
  5. Forms when 2 atoms share 1 or more pairs of outer shell electrons and forms a molecule.

5 True/False questions

  1. The tendency of water molecules to stick to each other is calledthe number of electrons it has.


  2. What primarily determines how an atom behaves?the atomic number.


  3. How many electrons can the inner shell of an atom hold?up to 8 electrons.


  4. How many of the 90 naturally- occuring elements are used by living organisms?25.


  5. What is a proton?an electronically neutral subatomic particle.


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