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5 Written questions

5 Matching questions

  1. What physical states is matter found in?
  2. What is an atom?
  3. The number of shells an atom has depends on what?
  4. What is a radioactive isotope?
  5. What is a hydrogen bond?
  1. a Solid
    Liquid
    Gas
  2. b Formed when a particularly positive atom from one polar molecule is attracted to the partially negative atoms in another molecule.
  3. c The smallest unit of matter that still retains the properties of an element.
  4. d the number of electrons it has.
  5. e is one in which the nucleus decays, giving off particles of energy.

5 Multiple choice questions

  1. 2.
  2. Forms when 2 atoms share 1 or more pairs of outer shell electrons and forms a molecule.
  3. 25.
  4. the atomic number.
  5. Oxygen, carbon, hydrogen, and nitrogen.

5 True/False questions

  1. What are elements?Substances that cannot be broken down into other substances.

          

  2. How many electrons can the 2nd and 3rd shell of an atom hold?2.

          

  3. What are the three types of chemical bonds?Ionic
    Covalent
    Hydrogen

          

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

          

  5. What is an ionic compound?A compound held together by ionic bonds.

          

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