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∙ 12y agoposition on the Periodic Table
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What kinds of predictions did Mendeleev make using his table?
By placing the elements in order of their Atomic Mass then grouping them based on similar chemical properties, Mendeleev recognized that there were gaps in the pattern he made where elements should be. He predicted there were some elements yet to be discovered and predicted their chemical properties. The elements he predicted were later discovered and named germanium, gallium, and scandium.
The usefulness of Mendeleev's periodic table was comfirmed by?
The usefulness of Mendeleev's periodic table was confirmed by the discovery of elements with predicted properties.
Which discovery showed that Mendeleev was correct in organizing his table of elements according to properties?
Gallium which had the properties that Mendeleev predicted
What did the gaps on Mendeleev's tabel represent?
He predicted that elements with the predicted properties would be discovered to fill in these gaps.
Why did Dimitri Mendeleev predict that more elements with specific properties would be discovered?
because,he predicted some possible chemical formulas of the then undiscovered elements between the elements in his periodic table. so he concluded that more elements with specific properties would be discovered.
What elements properties can be predicted from?
An elements property can be best predicted from the group it is in the Periodic Table. Groups (the columns of the tables) of elements have similar properties due to their similar electron configuration of the valence shell.
What kinds of predictions did Mendeleev make using his table?
By placing the elements in order of their Atomic Mass then grouping them based on similar chemical properties, Mendeleev recognized that there were gaps in the pattern he made where elements should be. He predicted there were some elements yet to be discovered and predicted their chemical properties. The elements he predicted were later discovered and named germanium, gallium, and scandium.
The usefulness of Mendeleev's periodic table was comfirmed by?
The usefulness of Mendeleev's periodic table was confirmed by the discovery of elements with predicted properties.
What are some of the uses of the periodic table of elements?
- allowed rational ordering of chemical elements- predicted the properties of unknown elements- the chemical behavior of chemical elements can be predicted- the atomic radius can be predicted- the melting point can be predictedand more
What properties can be predicted by the elements place on the periodic table?
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Which discovery showed that Mendeleev was correct in organizing his table of elements according to properties?
Gallium which had the properties that Mendeleev predicted
What did the gaps on Mendeleev's tabel represent?
He predicted that elements with the predicted properties would be discovered to fill in these gaps.
What are three things that can be predicted about an elements from its position on the periodic table?
Examples: atomic weight, density, chemical properties.
Why did Dimitri Mendeleev predict that more elements with specific properties would be discovered?
because,he predicted some possible chemical formulas of the then undiscovered elements between the elements in his periodic table. so he concluded that more elements with specific properties would be discovered.
How was Menndeleyev able to predict the existence of elements that had not yet been discovered?
Mendeleev left gaps for undiscovered elements. He predicted their properties which were found to be accurate later.
What are the advantages of Mendeleev periodic table?
- predicted the discovery of undiscovered elements and also predicted their properties. - highlighted some atomic weights of elements were incorrect - showed regular gradartion in physical and chemical properties of elements. - provided for variance from atomic weight order - provided the basis for the modern periodic table
Did Mendeleev fix the problem of predicted where new elements would fit into the periodic table?
Yes, Dimitri Mendeleev did (accurately, I might add) predict where elements would appear in his table. He also correctly predicted some of the missing elements' properties, based on where they were positioned in his table.
