Without knowing the electronic configurations of the atoms of elements Mendeleev still couldarrange the elements nearlyclose to the arrangements in the Modern periodic table. How canyou appreciate this?

Without knowing the electronic configurations of the atoms of elements

1.	Without knowing the electronic configurations of the atoms of elements Mendeleev still couldarrange the elements nearlyclose to the arrangements in the Modern periodic table. How canyou appreciate this?
Answer» ev sticked to his periodic arrangement, He was more CONCERNED to place the similar elements in the same group though sometimes it violated his law of increasing atomic mass. He EVENTUALLY could know the trend of properties of unknown elements that were not available at his time This way, He was able to predict new elements and he was also able to arrange the elements like in Modern periodic table. Hence, We can appreciate Dmitri Mendeleev master mind to have thought to arrange elements as per their properties. And More great achievement was that, His periodic table lead us to invention of more elements. Thus, It also worked as main REFERENCE for scientists to CARRY out their research.

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Without knowing the electronic configurations of the atoms of elements Mendeleev still couldarrange the elements nearlyclose to the arrangements in the Modern periodic table. How canyou appreciate this?

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