Other questions in this quiz

2. how many groups are there

  • 6
  • 7
  • 8
  • 4
  • 7
  • 5

3. how many elements were know of at the begining of 1800

  • around 30
  • around 50
  • end of 1900
  • around 40
  • around 20

4. wich side are the non metals on

  • right
  • left

5. who worked ot that not all elements had been found

  • wolfkapp
  • mendeleeves
  • newlands
  • dobereiner

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