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Because there were gaps in the Periodic Table, which he invented. Unlike other scientist of the time who tried to make the elements fit theircategorising system, such as Newlands and his law of octaves, Mendeleev came to the conclusion that they had not discovered all the elements as he noticed patterns that allowed you to categorise elements if you left gaps that undiscovered elements could fill.

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How periodic table was invented?

The Periodic Table was invented by Dmitry Mendeleyev. He grouped every known element and he used this table to predict the existence of other several elements. Mendelevium name pays homage to Dmitry Mendeleyev.


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.


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.


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.


How did Mendeleev predict the existence of unnatural elements?

Mendeleev predicted the existence of unnatural elements by leaving gaps in his periodic table for elements that had not yet been discovered. He used the properties of known elements around these gaps to infer the characteristics of the missing elements, thereby predicting their existence. This approach proved successful when later discoveries confirmed the existence of these predicted elements.


When mendeleyev changed the layout there were gapshow did the graps help scientists looking for undiscovered elements?

The gaps in Mendeleev's periodic table suggested the existence of undiscovered elements that would fit into the missing slots. This helped scientists predict the properties of these elements, aiding in their discovery. The periodic table's layout allowed for the systematic arrangement of elements based on their properties, making it easier for scientists to identify patterns and make predictions about unknown elements.


What did Mendeleev predict about the periodic table?

Dmitri Mendeleev predicted the existence and properties of several elements that were later discovered and filled gaps in the periodic table. He also predicted the properties of these elements based on their position in the periodic table.


Why did Mendeleev leave gaps in his periodic table with an example?

There were gaps in the periodic table a hundred years ago because investigators had not discovered some elements yet, though there was a "place" for them in the array. Recall that through the genius of Mendeleyev, the elements had been given an "order" owing to their chemical properties. By creating a "chart" (the first periodic table), Mendeleyev could see where elements "would be" though none had yet been discovered. He could predict that eventually an element would appear "here" on the table and would have a "these" properties because of the arrangements in the array or table of element.


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.


Mendeleev's periodic table was 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 true or false?

True.


What is the important work of Dmitri Mendeleev?

Mendeleev was the inventor of the Periodic Table. He organized all the known elements into the periodic table based on atomic number. He was also able to predict the existence of elements that had not yet been discovered based on gaps in the table he created. Based on observations of other elements in the groups he was also able to predict the characteristics of these unknown elements as well. NICE! dude


How did many elements did Mendeleev predict would be discovered?

3