Question

define Luther mayer law​

Answer 1

Answer:

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Lothar Meyer

German chemist Lothar Meyer (1868) came with identical classification of elements as that of Mendeleev in Russia at the same time independently. He used physical properties of elements such as melting point, boiling point, atomic volume etc. to relate similarities among particular set of elements. He had developed the periodic table that closely resembled the modern periodic table.

Answer 2

Answer:

Meyer considered the volume taken up by fixed weights of the various elements. Each weight contained the same number of atoms of its particular element (Avogadro's number). This meant that the ratio of the volumes of the various elements was equal to the ratio of the volumes of single atoms of the various elements. Thus Lothar Meyer could determine the atomic volumes of elements. If the atomic volumes of the elements were plotted against the atomic weight, a series of peaks were produced. The peaks had alkali metals: sodium, potassium, rubidium, and cesium. Each fall and rise to a peak, corresponded to a period like the waves. In each period a number of physical properties other than atomic volume also fell and rose, such as valence and melting point. The second and third period in Meyer's table included seven elements each, and duplicated Newlands' law of octaves.