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Periodic table of elements quiz: How many elements can you name in 10 minutes?The periodic table of elements is a landmark categorization developed in 1869 by the Russian chemist and inventor Dmitri ...
A Russian scientist called Dmitri Mendeleev produced one of the first practical periodic tables in the nineteenth century. The modern periodic table is based closely on the ideas he used.
A Russian scientist called Dmitri Mendeleev produced one of the first practical periodic tables in the nineteenth century. The modern periodic table is based closely on the ideas he used.
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