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ChemistryThe Periodic Table of Elements I
The modern periodic table is based on Dmitri Mendeleev’s 1896 observations that chemical elements can...
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Process of ScienceStatistics in Science
Scientific research rarely leads to absolute certainty. There is some degree of uncertainty in all...
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ChemistryAtomic Theory II
The 20th century brought a major shift in our understanding of the atom, from the...
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