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5 Written questions

5 Matching questions

  1. The hydrogen is at high pressure and extremely high temperatures and it's state of matter is _______
  2. WHen a helium nucleus fuses with a beryllium nucleus what is formed?
  3. Dmitri Mendeleev discovered a set of __________ applied to all the elements.
  4. THe matter in the sun and its planets originally came from a gigantic _________
  5. How did Mendeleev arrange the elements?
  1. a supernova
  2. b patterns
  3. c plasma
  4. d carbon
  5. e in order of increasing atomic mass

5 Multiple choice questions

  1. families
  2. a state of matter that is gas-like and is made of free electrons and nuclei of atoms without electrons
  3. periodic table
  4. (1) new elements have been added as they were discovered (2) arranged in order of atomic number , NOT atomic mass
  5. When hydrogen fuses to form helium nuclei and energy is produced

5 True/False questions

  1. Fusion keeps going until the core of the star is almost all _________periods


  2. From left to right the _________- of elements in a period change in a patternproperties


  3. Helium builds up in the sun's core and one or two helium nuclei fuse and form _________beryllium


  4. In 1869 _________ published the first periodic table with ______ elements and three missing elements?families


  5. What do we call it when a star explodes?when smaller nuclei combine and form larger nuclei - in stars


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