CHE-1101 Chapter Notes - Chapter 2.1-2.3: Dmitri Mendeleev, Julius Lothar Meyer, Nonmetal

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29 Aug 2016
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The periodic table was created by a chemist named dmitri ivanovich mendeleev and julius lothar meyer both worked independently but got the same thing; mendeleev usually gets credit because his work was published first. Elements arranged by order of increasing atomic mass, the columns have elements with similar chemical properties gaps in periodic table for elements simply not discovered yet. Except for h, all the elements in group one are metals known as alkali metals group 2 = alkaline earth metals unable to dissolve in water and are found in deposits in the ground group 8 = noble gases. Inert gasses not very reactive some are though group 7 = halogens group 5 = nitrogen family. Metals, non metals and metalloids periodic table composed of metals, non metals and metalloids. Metallic and nonmetallic character moving left to right the metallic properties switch to nonmetallic on the periodic table. Diatomic elements hydrogen nitrogen oygen fluorine chlorine bromine iodine.

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