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Description
Mind Map by Katherine Hiscock, updated more than 1 year ago
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Created by Katherine Hiscock
about 7 years ago
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The development of the periodic table
- Dmitri Mendeleev left gaps & predicted new elements
- 1869- Dmitri Mendeleev took 50 known elements arranged them into his table of elements.
- 1869- Dmitri Mendeleev took 50 known elements arranged them into his table of elements.
- In the early 1800's elements were arranged by atomic mass.
- relative atomic mass
- Physical & chemical properties
- relative atomic mass
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