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Explain achievement of meendleev periodic table ??? |
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Answer» Mendeleev also predicted the properties of some elements which were not discovered at that time ...like that of scandium, gallium etc... Noble gas which were discovered very late ...could be placed without disturbing the place of existing elements With the help of this periodic table mendeleev also correct the atomic mass of some elements like beryllium. ..from 13 to 9 He had also predicted the existence of many elements which where not discovered at that time. He left space for these elements in his periodic table. Open your ncert science book and read out periodic classification chapter.? He had arranged the elements according to there chemical as well as their physical property |
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