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Showing posts from September, 2022
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PERIODIC TABLE   The periodic table is a tabular display of the chemical elements. Chemical elements are arranged in order of atomic number,usually in rows. So that elements with similar atomic structure ( and hence similar chemical properties ) appear in vertical columns. Periodic table widely used in chemistry,physics and other sciences and is generally seen as an icon of chemistry.
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GREATEST  CHEMISTS  OF  ALL  TIME.  Here's the top ten greatest chemists in history. Joseph Priestley  (1733-1804) Louis Pasteur  (1822-1895) Alfred Nobel  (1833-1896) Dmitri Mendeleev  (1834-1907) Marie Curie  (1867-1934) Alice Ball  (1892-1916) Dorothy Hodgkin  (1910-1994) Rosalind Franklin  (1920-1958) Marie Maynard Daly  (1921-2003) Mario Molina  (1943-2020)
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WHAT  IS CHEMISTRY? simple definitions of chemistry: Chemistry is the branch of science that deals with the properties,composition,strucutre of elements & compounds and how can they change and the energy that is released or absorbed when they change. Chemistry is the study of matter; its composition,properties,transformation from one form to another and the energy that accompanies its transformation. There are five major branches of chemistry: Organic Chemistry Inorganic Chemistry Analytical Chemistry Physical Chemistry Biochemistry   Organic Chemistry Organic Chemistry is the study of the structure,properties,composition,reactions and preperation of carbon containing compounds. Inorganic Chemistry Inorganic Chemistry deals with synthesis and behavior of inorganic and organometalic compounds.This field covers chemical compounds that aren't carbon based. Analytical Chemistry Analytical Chemistry is the science of obtaining,processing and communicating information about the