Other questions in this quiz

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

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

3. when were most of the elements we know today eventualy known

  • end of 1800
  • mid 1900
  • begining of 1900
  • mid 1800

4. did people agree with newlands theroy

  • no
  • yes

5. wich side are the non metals on

  • right
  • left

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