C4 History of periodic table

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  • Created by: 24rachel
  • Created on: 07-03-16 16:54
what were the three names of the scientists?
Dobereiner, Newlands and Mendeleev
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How did Dobereiner organise the periodic table?
arranged elements into three groups depending on their chemical properties called triads
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What order did Dobereiner arrange the elements?
order of atomic mass
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How did Newland's arrange his elements?
into groups which had different properties
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what did Newland's do with metals and non-metals?
he mixed them up
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what did Newland's not do?
He did not leave any gaps for undiscovered elements
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What did Mendeleev do first of all?
arranged the 50 know elements into the periodic table with various gaps
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How did Mendeleev arrange the elements?
In order of atomic mass
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why did Mendeleev leave gaps?
so that he could keep elements with similar properties in the same vertical group
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What did the gaps that Mendeleev left predict?
the properties of undiscovered elements
10 of 10

Other cards in this set

Card 2

Front

How did Dobereiner organise the periodic table?

Back

arranged elements into three groups depending on their chemical properties called triads

Card 3

Front

What order did Dobereiner arrange the elements?

Back

Preview of the front of card 3

Card 4

Front

How did Newland's arrange his elements?

Back

Preview of the front of card 4

Card 5

Front

what did Newland's do with metals and non-metals?

Back

Preview of the front of card 5
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