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5 Written questions

5 Matching questions

  1. 20 and 40 Ca
  2. 19 and 39 K
  3. 9 and 19 Fl
  4. 3 and 7 Li
  5. 17 and 35 Cl
  1. a Flourine
  2. b Potassium
  3. c Lithium
  4. d Chlorine
  5. e Calcium

5 Multiple choice questions

  1. Helium
  2. Beryllium
  3. Magnesium
  4. Nitrogen
  5. Sodium

5 True/False questions

  1. 15 and 31 PBoron

          

  2. 6 and 12 CSulfur

          

  3. 14 and 28 SiAluminum

          

  4. 8 and 16 OOxygen

          

  5. 13 and 27 AlChlorine

          

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