Periodic Properties of Atoms - 1127 Words
The Periodic Properties of Atoms
The Periodic Table: In the 1870's, the Russian chemist Mendeleev developed the periodic table, based upon the relationship between the atomic weights of the elements and their chemical properties. As one ascends from lightest to heaviest elements, there is a periodic recurrence of chemical properties. For example, the elements with atomic numbers 2, 10, 18, 36, 54, and 86 all are chemically inert (the noble gases), while those with atomic numbers one greater 3,...
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