Development of the Periodic Table

Among the scientists who were responsible for the development of the periodic table are:

     I. Dmitri Mendeleev     II. Johann Dobereiner     III. John Newlands

   Arrange their names in order of the history of the development of the periodic table.

• I, II, III

• II, III, I

• III, I, II

• III, II, I

Who was the scientist who arranged the elements according to groups of three?

• John Dalton

• Johann Wolfgang Dobereneir

• Dmitri Inovich Mendeleev

• John Alexander Newlands

The arrangement of grouping elements by eight is called,

• Periodic Law

• Law of Octaves

• Law Triads

• Law of the Modern Periodic Table

Elements were also grouped by eight. This was devised by _________

• Dmitri Mendeleev

• John Newlands

• Lothar Meyer

• Henry Mosely

Who was the scientist who arranged the elements in horizontal rows according to

     increasing atomic masses?      

• John Dalton

• Johann Dobereneir

• Dmitri Mendeleev

• John Newlands