which best compares and contrasts how john newlands and dmitri mendeleev organized elements?\no both…

which best compares and contrasts how john newlands and dmitri mendeleev organized elements?\no both newlands and mendeleev arranged elements according to their chemical properties, but only newlands used atomic mass as well.\no both newlands and mendeleev arranged elements according to their atomic masses, but only mendeleev used chemical properties as well.\no both newlands and mendeleev organized elements into groups, but only newlands used a table with rows and columns.\no both newlands and mendeleev organized elements into a table with rows and columns, but only mendeleev named different groups of elements.

which best compares and contrasts how john newlands and dmitri mendeleev organized elements?\no both newlands and mendeleev arranged elements according to their chemical properties, but only newlands used atomic mass as well.\no both newlands and mendeleev arranged elements according to their atomic masses, but only mendeleev used chemical properties as well.\no both newlands and mendeleev organized elements into groups, but only newlands used a table with rows and columns.\no both newlands and mendeleev organized elements into a table with rows and columns, but only mendeleev named different groups of elements.

Answer

Brief Explanations:

John Newlands arranged elements in order of increasing atomic mass and noticed a periodicity in their properties (Law of Octaves). Dmitri Mendeleev also arranged elements by atomic mass but left gaps for undiscovered elements and considered chemical properties more systematically. He organized elements into a table with rows and columns and named different groups. Newlands didn't have the same level of sophistication in using chemical properties and naming groups.

Answer:

Both Newlands and Mendeleev arranged elements according to their atomic masses, but only Mendeleev used chemical properties as well.