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5 Written questions

5 Matching questions

  1. Isotopes
  2. Elements
  3. Frequency
  4. Atoms
  5. Atomic Mass
  1. a determined by adding the mass of the protons and neutrons of the atom
  2. b atoms of the same element with identical atomic numbers but different atomic masses due to different number of neutrons in the nucleus
  3. c the smallest part of a chemical element that retains the properties of the element
  4. d in electromagnetic radiation, the number of waves per second or cycles per second
  5. e a substance that cannot be broken down into simpler substances by chemical means

5 Multiple choice questions

  1. an energy state of an electron determined by a specific arrangement based on the quantum numbers
  2. the number of protons contained in an element
  3. elements that do not exhibit the properties of conductivity, malleability and ductility
  4. the dense core of an atom that contains protons and neutrons
  5. the number equal to the number of carbon atoms in exactly 12 of pure C

5 True/False questions

  1. Anionsa positively charged atom or molecule

          

  2. Chemical Propertiesany property of matter that doesn't change its chemical composition

          

  3. Electrona negatively charged subatomic particle located outside of the nucleus of the atom

          

  4. Cationsa positively charged atom or molecule

          

  5. Physical Propertiesany property of matter that doesn't change its chemical composition

          

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