Trends of Periodic Table
Trends of Periodic Table The properties of the elements exhibit trends. These trends can be predicted using the periodic table and can be explained and understood by analyzing the electron configurations of the elements. Elements tend to gain or lose valence electrons to achieve stable octet formation. Stable octets are seen in the inert gases, or noble gases, of Group VIII of the periodic table. In addition to this activity, there are two other important trends. First, electrons are added one at a time moving from left to right across...
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Periodic properties From the discussion of the periodic table in the preceeding heading it is evident that properties which depend upon the electronic configuration of an atom vary in a group or in period of the periodic table with atomic number. Thus, when the elements are arranged in order of their atomic numbers there is a periodicity, not only in their chemical properties, but also in their physical properties. 1. Atomic Volume: Atomic volume may be defined as the volume occupied by one gram atomic mass of an element;...
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Periodic Table The periodic table is a tabular display of the chemical elements, organized on a basis of their properties. Elements are presented in increasing atomic number; while rectangular in general outline, gaps are included in the rows or periods to keep elements with similar properties together, such as the halogens and the noble gases, in columns or groups, forming distinct rectangular areas or blocks. Because the periodic table accurately predicts the properties of various elements and the relations between properties, its use...
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