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How was mendeleev able to predict the discovery of unknown elements?
Wiki User
∙ 11y ago
Mendeleev arranged the elements in a table ordered by atomic mass, corresponding to relative molar mass as defined today. Mendeleev predicted the discovery of other elements and left space for these new elements, namely eka-silicon (germanium), eka-aluminium (gallium), and eka-boron (scandium). Thus, there was no disturbance in the Periodic Table.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoHe left blank spaces in the correct grouping and period that is where the newly discovered elements were placed.
Mendeleyev was able to predict the existence of elements because he left blank space in the right grouping &period. That is where the elements that he discovered were placed.
Wiki User
∙ 9y agoDmitri Mendeleev first noted gaps in his periodic table of elements. He demonstrated that the properties of the yet-unknown elements could be estimated based on the atomic masses of other elements.
Wiki User
∙ 10y agoI dont know i guess he was just a smart man
Wiki User
∙ 14y agomendeleev was able to use the patterns in any table to predict the properties of these undiscovered elements.
Wiki User
∙ 14y agoBy fallowing the pattern the other elements were showing in their groups by rounding to the midpoint between two elements Atomic Mass
Wiki User
∙ 16y agoWell look in a encylipedia or a book.
Wiki User
∙ 11y agohe was smart enough
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How could Dmitri Mendeleev predict the properties of elements that had not yet been discovered?
He most probably predicted it. He could have analyzed the table and could have thought there are a lot more elements out there. He probably thought the scientist in his generation did not know all of the elements.
What are the unknown elements of Mendeleev's Lab of 1869?
=unknown 1: silicon/unknown 2: neon/unknown 3: rubidium/unknown 4: krypton/unknown 5: gold/unknown 6: strontium/unknown 7: magnesium/unknown 8:cesium/unknown 9: thallium==are those the answers?=
What is the main contribution of Dmitri Mendeleev in modern chemistry?
He made the periodic table. When he found gaps he said there were unknown elements, he was right and those elements were found in his lifetime.Mendeleev was the first person to organize the elements into what we would recognize as a version of the modern periodic table.
What is the modern name for eka-silicon?
Ekasilicon is germanium['eka' is Sanskrit language for: 'first' place down under Si)Germanium was isolated in 1886, and provided the best confirmed prediction of Mendeleev's periodic table, which was built up before the discovery of Ge.(Professor Dmitri Mendeleev published the first Periodic Table of the Atomic Elements in 1869).When he proposed his periodic table, he noted some gaps in the table, and predicted that as-of-yet unknown elements existed with properties appropriate to fill those gaps.
How did Dmitri Mendeleev arrange the elements in the periodic table?
Mendeleev ordered the elements from lowest atomic mass unit (amu) to highest atomic mass unit.
Mendeleev's periodic table was use ful because it enabled scientists to predict properties of unknown?
elements
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
Why did mendeleev had gaps in his tables?
Because during his time many elements were unknown. Hence the gap for the unknown elements.
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.
How could Dmitri Mendeleev predict the properties of elements that had not yet been discovered?
He most probably predicted it. He could have analyzed the table and could have thought there are a lot more elements out there. He probably thought the scientist in his generation did not know all of the elements.
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 the unknown elements of Mendeleev's Lab of 1869?
=unknown 1: silicon/unknown 2: neon/unknown 3: rubidium/unknown 4: krypton/unknown 5: gold/unknown 6: strontium/unknown 7: magnesium/unknown 8:cesium/unknown 9: thallium==are those the answers?=
Mendeleevs periodic table was useful because it enabled scientists to predict properties of unknown?
elements
What was Mendeleev's prediction?
Professor Dmitri Mendeleev published the first periodic table of chemical elements in 1869 based on properties which appeared with regularity. He noted gaps in the table, and predicted that as-of-yet unknown elements existed with properties appropriate to fill those gaps.
What Mendeleev's prediction?
Professor Dmitri Mendeleev published the first Periodic Table of chemical elements in 1869 based on properties which appeared with regularity. He noted gaps in the table, and predicted that as-of-yet unknown elements existed with properties appropriate to fill those gaps.
What did Mendeleev do that was so important?
He created a periodic table arranged by atomic mass. He wasn't the first, but he was the first to leave spaces in his table for unknown elements. At his time, there were only 63 known elements. Based on the elements around the blank space, scientists could predict the properties of the unknown element. The spaces were filled in when they were discovered.
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.
