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Mendeleev left some gaps in his table for the elements which were not discovered at that time.Those elements were later found as silicon,gallium,germanium which were then filled in the gaps

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Q: Why did Dmitri Mendeleev leave some squares in his table blank?
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How many blank spaces did Mendeleev leave in the periodic table which represented elements that had not yet been discovered?

Mendeleev left 3 blank spaces for the elements that had not yet been discovered.


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's decision to leave blank spaces on his table sometime referred to as his most significant contribution to periodic table?

Mendeleev thought about the future and realized that it was entirely unlikely that all earthly elements had been discovered, so he left blank spaces in his table and even predicted some of the elements that would fit in those spaces. Surprisingly enough, as time passed, chemists began discovering many of the elements that he had predicted, which fit perfectly into his periodic table.


Why did Medellev leave gaps in the periodic table?

Because those elements were not discovered at the time Mendeleev proposed the periodic table.


Why did Mendeleev leave blanks in his early version of the periodic table?

At the time the periodic table was first devised, there were many elements that had not yet been discovered. Their existence could be inferred, but they couldn't actually be put into the table until they were discovered.When the periodic table was first devised, there were lots of elements that had not been discovered yet.

Related questions

Why did Dmitri leave blank spaces on the periodic table?

Because those elements were not known at the time of Dmitri Mendeleev.


Why did he leave squares in the first periodic table blank?

I believed you are referring to Dmitri Mendeleev. He left blank space because he was able to deduce a pattern between the chemical properties of the elements an their atomic weights. He also noticed gaps in this pattern and hypothesized correctly that these blank spots corresponded to elements that had not yet been discovered.


Why did Dmitri Mendeleev leave spaces in the periodic table?

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Why did Dmitri leave blank on the preodic table?

There is no specific reason mentioned for why Dmitri Mendeleev left blank spaces on the periodic table. It is believed that he left these spaces to accommodate elements that were yet to be discovered or to demonstrate the existence of elements with certain properties that were predicted but not yet confirmed. These blank spaces eventually led to the discovery of new elements and validated Mendeleev's periodic table.


How many blank spaces did Mendeleev leave in the periodic table which represented elements that had not yet been discovered?

Mendeleev left 3 blank spaces for the elements that had not yet been discovered.


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.


How can one make a blank calendars?

One can make a blank calendar using sheets of blank paper! First, draw boxes for the dates and leave them blank. Easy and simple. One can also get paint samples where there are already squares and put them together to form a calendar.


Why did Mendeleev leave the university?

speeking of his social views


How did Mendeleev know where to leave space in his table?

Mendeleev arranged the elements in order of increasing related Atomic Mass


Why did Dmitri leave gaps?

because the properties of known elements


Is it acceptable to leave the subject space blank when writing emails?

No is not acceptable to leave subject space blank


Why was Mendeleev's decision to leave blank spaces on his table sometime referred to as his most significant contribution to periodic table?

Mendeleev thought about the future and realized that it was entirely unlikely that all earthly elements had been discovered, so he left blank spaces in his table and even predicted some of the elements that would fit in those spaces. Surprisingly enough, as time passed, chemists began discovering many of the elements that he had predicted, which fit perfectly into his periodic table.