modern periodic table | 
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| navigate by keyword : alkali arithmetic arrangement atomic atoms bonds chemical chemistry columns dobereiner dobereiners electrons element elements group groups horizontal icon lithium mass masses members metals modern number pblock periodic periods physics potassium rows sciences second shells sodium stated table tabular triad triads		 | 
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| The periodic table, also known as the periodic table of the elements, is a tabular display of the chemical elements. It is widely used in chemistry, physics, and other sciences, and is generally seen as an icon of chemistry. | 
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