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5 Written questions

5 Matching questions

  1. What determines which element it is?
  2. What is an ionic compound?
  3. What is a radioactive isotope?
  4. What is an atom?
  5. What is ion?
  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 is one in which the nucleus decays, giving off particles of energy.
  4. d The smallest unit of matter that still retains the properties of an element.
  5. e the atomic number.

5 Multiple choice questions

  1. up to 8 electrons.
  2. Electrons.
  3. a molecule that has opposite charges on opposite ends.
  4. Formed when a particularly positive atom from one polar molecule is attracted to the partially negative atoms in another molecule.
  5. The attraction btwn opposite charged ions.

5 True/False questions

  1. What physical states is matter found in?Solid
    Liquid
    Gas

          

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

          

  3. What is matter?Anything that has mass and occupies space.

          

  4. What are isotopes?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

          

  5. What is the atomic number?The smallest unit of matter that still retains the properties of an element.

          

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