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6 Written questions

6 Multiple choice questions

  1. the electrically nuetral particles in an atomic nucleus
  2. measure of the average mass of the atomic mass unit
  3. atoms whose nuclei have the same number of protons but different numbers of nuetrons
  4. a vertical column in the periodic table
  5. the gradual change of properties of elements across any period
  6. a highly organized chart listing all the known elements arranged in horizontal rows called periods and vertical columns called groups

6 True/False questions

  1. atomic numberthe number that desginates the identity of an element which is the number of protons in the nucleus of the atom

          

  2. electronthe negatively charges particles in an atom

          

  3. protonthe positivly charged particles in an atomic nucleus

          

  4. non metalan element that is generally shiny, opaque, malleable, ductile, and a good conductor of electricity and heat

          

  5. metalloidone of the six elements boron, silicon, germanium, arsenic, antimony, tellunum- they exhibet both metalic and non metalic

          

  6. nucleona nuclear proton or neutron; the collective name for either or both