chemistry Assessment task

  • Henry Cavedish

    he discoved hydroden as a gass that is colorless, odourless gas that can explode when mixed with air
  • carl wilhelm

    independently isolated oxygen
  • John Dalton

    He created a law called 'dalton's law describing the bond between the components in a mixture of gases.
  • Johann Berzelius

    developed groups of 3 elements with similar properties
  • jakob Berzelius

    developed a table of atomic weights & introduced letters to symbolize elements
  • John Newlands

    Put knowed elements in the table of atomic weight and notices similarities between some elements
  • Lother Meyer

    made a erly vision of the periodic table with 28 elements
  • William Ramsay

    Discoved the noble gases e.g. argon, helium, neon, krypton, and xenon