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5 Written questions

5 Matching questions

  1. Cations
  2. Nucleus
  3. Metals
  4. Elements
  5. Atomic Number
  1. a the dense core of an atom that contains protons and neutrons
  2. b a substance that cannot be broken down into simpler substances by chemical means
  3. c the number of protons contained in an element
  4. d a class of materials that exhibit the properties of conductivity, malleability and ductility
  5. e a positively charged atom or molecule

5 Multiple choice questions

  1. elements that do not exhibit the properties of conductivity, malleability and ductility
  2. a negatively charged atom or molecule
  3. a positively charged subatomic particle located in the nucleus of an atom
  4. a substance that consists of two or more elements chemicallhy bonded together in definite proportions
  5. a neutral particle located in the nucleus with a charge of zero

5 True/False questions

  1. Isotopesatoms of the same element with identical atomic numbers but different atomic masses due to different number of neutrons in the nucleus

          

  2. Wavelengthin electromagnetic radiation, the distance measured from crest to crest of one complete wave or cycle

          

  3. Atomic Massthe number of protons contained in an element

          

  4. Avogadro's Numbera large number that equals the number of particles in a mole 6.022 X 10^23

          

  5. Ionization Energythe energy requried to remove an electron from a gaseous atom at ground state

          

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