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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 led Mendeleev to predict that some elements had not yet been discovered?
Mendeleev discovered gaps in his periodic table where elements should logically fit based on their properties and atomic weights. He predicted that these missing elements would eventually be discovered because there were clear patterns in the properties of known elements that suggested the existence of undiscovered elements to complete the table.
Why did Mendeleev leave spaces in his table?
Because he knew from his already discovered periods and groups of elements that the gaps would be filled by newly discovered elements. If you have a gap such as this, 3d5__3d7 along a period's outer valance level you can predict, which Mendeleev did, that the element with the outer valance number, 3d6, will be found in the future.
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.
How many new elements did Mendeleev predict he would discover later on?
Mendeleev predicted that there would be three additional elements to be discovered based on the gaps in his periodic table at the time. These elements turned out to be later discovered and were named gallium, scandium, and germanium.
What enable Mendeleev to predict that certain elements would eventally be discovered?
U should know this.
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 led Mendeleev to predict that some elements had not yet been discovered?
Mendeleev discovered gaps in his periodic table where elements should logically fit based on their properties and atomic weights. He predicted that these missing elements would eventually be discovered because there were clear patterns in the properties of known elements that suggested the existence of undiscovered elements to complete the table.
Why did Mendeleev leave spaces in his table?
Because he knew from his already discovered periods and groups of elements that the gaps would be filled by newly discovered elements. If you have a gap such as this, 3d5__3d7 along a period's outer valance level you can predict, which Mendeleev did, that the element with the outer valance number, 3d6, will be found in the future.
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.
How many new elements did Mendeleev predict he would discover later on?
Mendeleev predicted that there would be three additional elements to be discovered based on the gaps in his periodic table at the time. These elements turned out to be later discovered and were named gallium, scandium, and germanium.
How could Mendeleev make predictions about the properties of undiscovered elements?
Mendeleev arranged the known elements by increasing atomic mass and grouped elements with similar properties together. Gaps in the table indicated elements that were yet to be discovered. By observing the patterns in the properties of known elements within each group, Mendeleev was able to predict the properties of the undiscovered elements that would fill these gaps.
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.
Why did mendeleev leave blank spaces on his periodic table?
Mendeleev left blank spaces because certain elements on the Periodic Table were not known at that time. He knew that in the future, those elements would be found and placed on the periodic table.
Why was mendeleev unable to make any predictions about the noble gas elements?
The reason that Mendeleev didn't make any predictions about the gases was that these gases were not even discovered yet, therefore it was impossible for Mendeleev to make predictions.----Dmitri Mendeleev made his predictions on what would fill the gaps on his far from perfect periodic table. He predicted their sizes, weights, appearances, etc.I think the reason he didn't make predictions is because noble gases are not visible, and weightless.-------------------------------Mendeleev couldn't predict the noble gases' properties because their existence wasn't known, as implied above.Argon, a noble gas, was noticed twenty-five years later by John William Strutt and Sir William Ramsey (the names are not really important).It doesn't matter that the elements weren't discovered. That's the whole point of arranging the elements. To PREDICT the properties of the missing/unknown ones.
Periodic table what was missing at first?
When the periodic table was first created by Dmitri Mendeleev in 1869, there were some gaps or missing elements that had not yet been discovered. Mendeleev left spaces in his table for these unknown elements, accurately predicting both their properties and where they would be located in the table once they were discovered. Over time, these missing elements, such as gallium and germanium, were discovered and filled in the gaps as Mendeleev had predicted.
How did mendeleev explain blank spaces left in his periodic table?
Mendeleev explained the blank spaces in his periodic table by predicting the existence and properties of elements that had not yet been discovered. He organized the known elements based on their atomic weight and properties, which allowed him to accurately predict the properties of missing elements. These predictions helped guide the discovery of new elements that filled in the empty spaces in the table.
