Which best compares and contrasts how John Newlands and Dmitri Mendeleev organized elements?
A. Both Newlands and Mendeleev arranged elements according to their chemical properties, but only Newlands used atomic
mass as well
B. Both Newlands and Mendeleev arranged elements according to their atomic masses, but only Mendeleev used chemical
properties as well.
C. Both Newlands and Mendeleev organized elements into groups, but only Newlands used a table with rows and columns
D. Both Newlands and Mendeleev organized elements into a table with rows and columns, but only Mendeleev named different
groups of elements.