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What are the demerits of mandeleevs ?
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What are the demerits of mandeleevs ?
Demerits of Mendeleev's Periodic Table :
(a) Mendeleev arranged elements in the ascending order of their atomic masses. There was no fixed position for hydrogen in his periodic table, as it resembled alkali metals as well as halogens.
(b) Elements of higher atomic mass were placed before elements of lower atomic mass. Cobalt with atomic mass 58.93 was placed before nickel with atomic mass 58.71.
(c) Elements having different properties were placed in the same sub group like manganese (Mn) was placed with halogens which had totally different properties
(a) Mendeleev arranged elements in the ascending order of their atomic masses. There was no fixed position for hydrogen in his periodic table, as it resembled alkali metals as well as halogens.
(b) Elements of higher atomic mass were placed before elements of lower atomic mass. Cobalt with atomic mass 58.93 was placed before nickel with atomic mass 58.71.
(c) Elements having different properties were placed in the same sub group like manganese (Mn) was placed with halogens which had totally different properties
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What are the demerits of mandeleevs ?
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What are the demerits of mandeleevs ? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about What are the demerits of mandeleevs ? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What are the demerits of mandeleevs ?.
What are the demerits of mandeleevs ? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about What are the demerits of mandeleevs ? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What are the demerits of mandeleevs ?.
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