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History of the Periodic Table: Difference between revisions
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== Introduction == | == Introduction == | ||
Before the creation of the [[periodic table]], the elements first had to be discovered. After the discovery of pure substances, chemists began to make a list of elements. This list grew until it had over sixty elements. Scientists began to see patterns in elements, like color and density. [[John Newlands]] had the idea to arrange them by atomic weight, and it was | Before the creation of the [[periodic table]], the elements first had to be discovered. After the discovery of pure substances, chemists began to make a list of elements. This list grew until it had over sixty elements. Scientists began to see patterns in elements, like color and density. [[John Newlands]] had the idea to arrange them by [[atomic weight]], and it was Dmitri Mendeleev who accomplished this task. After that, the [[periodic table]] continued to grow, and the rules about it changed as elements were added and rearranged. Today the [[periodic table]] is an organized representation of all the elements we have discovered. Not many changes are being made anymore, but it continues to aid scientists in other discoveries and accomplishments. | ||
== Early Organizational Endeavors== | == Early Organizational Endeavors== | ||
