Question

which two chemists organized elements based on properties such as how the elements react or whether they are solid or liquid?
lavoisier and mendeleev
döbereiner and newlands
newlands and mendeleev
lavoisier and döbereiner

Explanation:

Döbereiner grouped elements into triads based on properties. Newlands proposed the Law of Octaves arranging elements by properties. Lavoisier is known more for combustion - oxygen theory. Mendeleev created the periodic table arranging elements by atomic mass and properties. Döbereiner and Newlands were early in organizing elements by properties like reactivity and physical state.

Answer:

B. Döbereiner and Newlands