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Demerits of Mendeleev's periodic table
In spite of the above advantages, Mendeleev's periodic table suffered defects as follows: The position of hydrogen was not correctly defined. It was placed in group I although it resembles both the group I elements - the alkali metals and the group VII elements-the halogens, in their properties...
Merits of Dalton's atomic theory
It has enabled us to explain the laws of chemical combination. Dalton was the first person to recognize a workable distinction between the ultimate particle of an element (atom) and that of a compound (molecule)..
Prof. Dr. Rudolf Krska (Head of Institute, Center for Analytical Chemistry, IFA-Tulln, University of Natural Resources and Applied Life Sciences, Vienna, Austria) answers the question: "What is LC-MS/MS and what are the advantages?" ... liquid chromatography mass spectrometry analysis mycotoxin detection BIOMIN Mycotoxin Channel
Genetic engineering has many advantages, as it helps scientists view the future of life to cure diseases, develop medicine and study illness. Explore the benefits that genetic engineering has in the world of science with information from a biochemistry professor in this free video on genetic engineering. Expert: M. Rahman Bio: M. Rahman is a professor of bio chemistry at University of California San Diego. Filmmaker: Bing Hugh ... science genetic engineering cloning ethics benefits of dangers ...