Question

Which property was not a factor in Mendeleev’s organization of the periodic table? Atomic Mass. Electronegativity. Chemical properties. Physical properties

Answer 1

Electronegativity was not a factor in Mendeleev’s organization of the periodic table. Mendeleev primarily arranged the elements by atomic mass and grouped them based on their chemical and physical properties. Electronegativity, as a concept, was developed later and was not used in Mendeleev’s classification.