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2 cards from this section. Quick, good the night before a test.
Who is credited with creating the first periodic table?
Think about the scientist who first organized elements in a table format.
What key property did Moseley identify to organize elements?
Consider what determines the identity of an element.
Who is credited for the modern periodic table?
Think about who worked with X-ray diffraction.
True or False: Mendeleev's periodic table was based on atomic number.
Focus on when he made his discoveries.
Considering the atomic mass and atomic number of elements, how would the placement of a hypothetical element with a higher atomic mass than hydrogen but lower than lithium be affected in Mendeleev's table versus Moseley's?
Focus on how the priority of the sorting criteria affects the element's position.
Research a modern element discovered after Mendeleev's time. Explain how Mendeleev might have predicted its properties based on the trends he identified.
Use the known properties of similar elements to back predictions.
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