write two difference between newland law of octaves and Mandela periodic table
Answers
Both Newlands and Mendeleev arranged the elements in order of their atomic weight (now called relative atomic mass). However, Mendeleev did some things with his table that made it more useful than Newlands' table – for example, he swapped the order of some elements if that fitted their properties better.
Answer:
Both Newlands and Mendeleev arranged the elements in order of their atomic weight (now called relative atomic mass). ... However, Mendeleev did some things with his table that made it more useful than Newlands' table – for example, he swapped the order of some elements if that fitted their properties better.
newland law of octaves : Newland's Law of Octaves: “When elements are arranged in order of increasing atomic masses, the properties of every eighth element (starting from any element) are the repetition of the properties of that starting element. Examples: Li (first element) Na (eighth element).law of octaves, in chemistry, the generalization made by the English chemist J.A.R. Newlands in 1865 that, if the chemical elements are arranged according to increasing atomic weight, those with similar physical and chemical properties occur after each interval of seven elements.
Mandela periodic table: Mendeleev arranged the elements in order of increasing relative atomic mass . When he did this he noted that the chemical properties of the elements and their compounds showed a periodic trend .Mendeleev claimed the famous periodic law that “Element properties are a periodic function of their atomic weight.” Mendeleev placed elements in the order of their atomic weights in the form of a table known as the Periodic Table of Mendeleev.
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