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प्रश्न
What were the criteria used by Mendeleev in creating his Periodic Table?
What were the characteristics of the atoms that Mendeleev concentrated upon while creating his periodic table?
उत्तर १
Mendeleev used atomic mass of the elements as the unique criteria of the elements. He proposed that the chemical properties of elements are the periodic function of their atomic masses. And thus, he arranged the elements in the increasing order of their atomic masses.
उत्तर २
He concentrated on the various compounds formed by the elements with Hydrogen and Oxygen. Among physical properties, he observed the relationship between the atomic masses of various elements
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संबंधित प्रश्न
Why do you think the noble gases are placed in a separate group?
What property do all elements in the same column of the Periodic Table as fluorine have in common?
Which group of elements could be placed in Mendeleev's periodic table later on, without disturbing the order? Give reason.
State the periodic law on which Mendeleev's periodic table table was based. Why and how was this periodic law changed?
State the merits of Mendeleev's classification of elements.
In Mendeleev's periodic table, gaps were left for the elements to be discovered later on. An element which found a vacant place in the periodic table later on is:
(a) Be
(b) Si
(c) Ge
(d) Se
Why could no fixed position be given to hydrogen in Mendeleev's periodic table?
State the merits of Mendeleev's classification of elements.
The elements from the zero group are called _______.
Which one of the following does not increase while moving down the group of the periodic table?
