Question

who first arranged the periodic table, and what does this table display? dmitri mendeleev, elements and their masses johannes dobereiner, triads with similar properties john dalton; the known elements and their given names aristotle; the known elements and their given names

Explanation:

Dmitri Mendeleev is credited with first arranging the periodic table. He organized elements based on their atomic masses and predicted properties of undiscovered elements. The periodic table displays elements and their properties, including atomic mass.

Answer:

A. Dmitri Mendeleev, elements and their masses