(a) Why do we classify elements? (b) What were the two criteria used by Mendeleev in creating his Periodic Table? ... Justify your answer. -Chemistry 9th Last Answer : (a) It is done so as to study the properties of elements conveniently. (b) Increasing order of atomic mass and similarities in chemical properties (especially nature and formulae of oxide and hydride formed). ... at that time. (e) They will be kept at same slot as they have same chemical properties....
How Mendeleev organized his periodic table? Last Answer : By the increasing Atomic Mass....
How did Mendeleev arrange the known element in his periodic table? Last Answer : He arranged the elements in the increasing order of their atomicmasses and repeating periodic properties....
Mendeleev arranged the elements in his periodic table on the basis of Last Answer : atomic mass....
In his periodic table, Mendeleev could not assign a correct position to Last Answer : Hydrogen...
Mendeleev was a scientist from which country ? Last Answer : Mendeleev was a Russian scientist....
How many elements did Mendeleev introduce the modern periodic table ? Last Answer : Mendeleev introduced the modern periodic table with 67 elements....
Mendeleev is a citizen of which country ? Last Answer : Mendeleev is a Russian citizen....
What did Moseley use to reorder the elements of Mendeleev periodic table? Last Answer : Henry Moseley discovered a relation between X-ray spectra and the atomic number of chemical elements....
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