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5 Written questions

5 Matching questions

  1. What is an ionic bond?
  2. How many of the 90 naturally- occuring elements are used by living organisms?
  3. What primarily determines how an atom behaves?
  4. What makes up the nucleus?
  5. What is an atom?
  1. a Electrons.
  2. b Protons and neutrons.
  3. c 25.
  4. d The smallest unit of matter that still retains the properties of an element.
  5. e The attraction btwn opposite charged ions.

5 Multiple choice questions

  1. Formed when a particularly positive atom from one polar molecule is attracted to the partially negative atoms in another molecule.
  2. the number of electrons it has.
  3. A subatomic particle w/ a single unit of positive electrical charge (+)
  4. Atoms held together by covalent bonds.
  5. A compound held together by ionic bonds.

5 True/False questions

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


  2. What is a polar molecule?Atoms held together by covalent bonds.


  3. What is ion?The sum of the number of protons and neutrons in its nucleus.


  4. Which part of the atom has the most energy?The number of protons in an atom.


  5. What is mass?Anything that has mass and occupies space.


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