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Unformatted text preview: electrons. In this care they all have 4 valence electrons, this causes them to have similar properties because they have the same likeliness to give or receive valence electrons. This is similar to the puzzle because in columns the pieces shared some of the same characteristics like color, and top and bottom number coordination with the next column. 5. His predictions were extremely accurate. Mendeleevs predictions were: Atomic Mass- 72 Density- 5.5 g/cm^3 Melting Point- High Color- Grey The actual properties are: Atomic Mass- 72.59 Density- 5.35 g/cm^3 Melting Point- 947C Color- Grey I believe that the accuracy of his predictions are directly correlated to the invention and organization of the periodic table of elements. Justin Benson Jen Stam Jodi Smith Drew Larrabee CHM 113 Lab...
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