merits of mendeleev peroodic table
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Some gaps were left for the elements yet to be discovered. Thus, if a certain new element is discovered, it can be placed in a new group without disturbing any existing group.he also arranged the elment according to their increasing atomic masses
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Merits of Mendeleev Periodic Table :-
1.He left blank Places which help scientist to discover new element
2.When Noble gasses was discovered Hel could add it to periodic table without any major changle
3.He predicted the property of new element
1.He left blank Places which help scientist to discover new element
2.When Noble gasses was discovered Hel could add it to periodic table without any major changle
3.He predicted the property of new element
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(a)Systemic study of elements:He arranged known elements in order of their increasing atomic masses considering the facts that elements with similar properties should fall in the same vertical column.
(b)Correction of atomic masses:The mendeleev's periodic table could predict errors in atomic masses of certain elements were corrected.
(c)Mendeleev predicted the properties of those missing elements from the known properties of the other elements in the same group.
(d)Noble gases were discovered late because they are very inert and are present in extremely low concentrations. one of the achievement of mendeleev's periodic table that was when these gases were discovered, they could be placed in new group, without disturbing the existing order.
(b)Correction of atomic masses:The mendeleev's periodic table could predict errors in atomic masses of certain elements were corrected.
(c)Mendeleev predicted the properties of those missing elements from the known properties of the other elements in the same group.
(d)Noble gases were discovered late because they are very inert and are present in extremely low concentrations. one of the achievement of mendeleev's periodic table that was when these gases were discovered, they could be placed in new group, without disturbing the existing order.
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