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Mendeleev predicted the existence and properties of germanium by leaving gaps in his Periodic Table for elements that had not yet been discovered. He correctly deduced the properties of the missing element based on the pattern of elements around its position in the table. When germanium was discovered, its properties closely matched Mendeleev's predictions, confirming the validity of his periodic table.
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How was Dmitri Mendeleev able to predict the properties of germanium?
Dmitri Mendeleev was able to predict the properties of germanium by leaving gaps in his periodic table for elements that were yet to be discovered. He noticed a pattern in the properties of known elements and used this pattern to predict the existence and properties of undiscovered elements, such as germanium.
Why were the elements gallium scandium and germanium important to Medeleev?
Mendeleev used the properties of gallium, scandium, and germanium to predict their existence before they were discovered. Their discovery and properties helped confirm the accuracy of Mendeleev's periodic table and his periodic law. This further solidified Mendeleev's contributions to the development of the modern periodic table.
Why was the discovery of germanium important for Mendeleev's table?
The discovery of germanium was important for Mendeleev's periodic table because its properties matched the gaps he had predicted in his table. This provided evidence for the periodicity of elements and the accuracy of Mendeleev's arrangement. Germanium's discovery also helped validate the periodic law which states that the properties of elements are periodic functions of their atomic numbers.
Is it true or false that Mendeleev and other scientists were able to use the periodic table to predict the properties of undiscovered elements?
True. Mendeleev and other scientists used the periodic table to predict the properties of undiscovered elements based on their position in the table. This led to the successful discovery and confirmation of elements like gallium and germanium.
What element was discovered in 1871 by Mendeleev?
The element discovered by Mendeleev in 1871 was germanium. Mendeleev predicted the existence of this element and its properties before it was actually discovered.
How was Dmitri Mendeleev able to predict the properties of germanium?
Dmitri Mendeleev was able to predict the properties of germanium by leaving gaps in his periodic table for elements that were yet to be discovered. He noticed a pattern in the properties of known elements and used this pattern to predict the existence and properties of undiscovered elements, such as germanium.
Which elements would you use to predict properties of ekasilicon?
Ekasilicon was the name appointed by Mendeleev to the undiscovered germanium; germanium has similar chemical properties to silicon and tin.
Why were the elements gallium scandium and germanium important to Medeleev?
Mendeleev used the properties of gallium, scandium, and germanium to predict their existence before they were discovered. Their discovery and properties helped confirm the accuracy of Mendeleev's periodic table and his periodic law. This further solidified Mendeleev's contributions to the development of the modern periodic table.
What element did Mendeleev predict before it was discovered?
Mendeleev predicted that gallium belonged to the R2O3. Gallium was not discovered until 1874. The noble gases weren't discovered until 1894 through 1899.
How did Mendeleev place germanium on the periodic table?
Mendeleev was able to predict the properties of the yet unknown element (Germanium) by the properties of the surrounding known elements on his periodic table of the elements. Predicting properties such as reactivity, density, atomic mass, etc., he knew where the undiscovered element would be placed.
Why was the discovery of germanium important for Mendeleev's table?
The discovery of germanium was important for Mendeleev's periodic table because its properties matched the gaps he had predicted in his table. This provided evidence for the periodicity of elements and the accuracy of Mendeleev's arrangement. Germanium's discovery also helped validate the periodic law which states that the properties of elements are periodic functions of their atomic numbers.
Why did mendeleev not include germanium in the periodic table?
He could not because it had not yet been discovered when he created the table. However he was able to determine that an element was missing at that location and predict the properties it would have when it was discovered. When germanium was discovered and named, his predictions were found to be very accurate.
How did Mendeleev predict the properties of silicon?
Mendeleev did not predict the properties of silicon.
Mendeleev's predicted an atomic mass for the element that was later discovered and named germanium how much does germanium actual atomic mass differ from his prediction?
Mendeleev predicted the atomic mass of germanium to be approximately 68 g/mol. The actual atomic mass of germanium is about 72.63 g/mol. This results in a difference of roughly 4.63 g/mol between Mendeleev's prediction and the actual value.
Was Mendeleev's periodic table accurate enough that he was able to use it to predict the existence and several properties of certain elements that had not yet been discovered?
Mendeleev was able to predict the properties of the elements that were not discovered at that time. He left gaps for these elements in his Periodic Table.
Why were the holes in mendeleev's table important?
The holes suggested that there were "missing" elements that hadn't been discovered yet. Mendeleev successfully predicted the basic properties of germanium, which hadn't been discovered at the time, based on the properties he expected an element in that position to have. He called it "eka-silicon" (eka is a Sanskrit word meaning "one", because it was one period "higher" than silicon).When germanium was later discovered and turned out to have properties very similar to what Mendeleev had predicted, it went a long way towards validating Mendeleev's concept.
Is it true or false that Mendeleev and other scientists were able to use the periodic table to predict the properties of undiscovered elements?
True. Mendeleev and other scientists used the periodic table to predict the properties of undiscovered elements based on their position in the table. This led to the successful discovery and confirmation of elements like gallium and germanium.
