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What did Dimtri Mendeleev did not know about the periodic table?
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∙ 8y ago
Only some elements were discovered during the life of Mendeleev.
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∙ 8y ago
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Was helium included in Mendeleev's original periodic table?
No, helium was not included in Mendeleev's original periodic table. It was discovered in 1868, a year after Mendeleev's table was published in 1869.
Did mendeleev know about protrons?
No He didn't knew. Mendeleev proposed his periodic table in 1869 and he died in 1907. Protons was discovered by Rutherford after that (in 1920).
What did Dmitri Mendeleev arrange into a systematic chart?
the periodic table of elements In this table, elements having similar chemical properties are stacked up. The chemical properties are determined by how many free bonds an atom has open, which is related to how many electrons are in that element's outer shell.
Why couldn't Mendeleev predict the existence of the noble gases in the periodic table of elements?
He could predict other elements because there was an obvious gap, but he couldn't predict the noble gases because he didn't realize that there was going to be an 18th group since none of them were yet discovered. When he first started organizing the periodic table, the pattern still made sense even without the noble gases.
Mendeleev's periodic table did not include the group we now know as noble gases What might be the reason?
They were not discovered at that time.
History of periodic table?
The history is that Dymitry Mendeleev is the inventer of long time periodic table that's all i know
Who organized the very first periodic table?
Dmirtri Mendeleev made the first periodic table. It was organized by elements according to the atomic mass. < notice it is atomic mass not number>
Was helium included in Mendeleev's original periodic table?
No, helium was not included in Mendeleev's original periodic table. It was discovered in 1868, a year after Mendeleev's table was published in 1869.
Who made the first periodic table?
Dimtrii Mendeleev made the first Periodic Table. dmitry mendeleev
What did Dmitri Mendeleev do during the Industrial Revolution?
Mendeleev laid the foundation for theperiodictable that we know today
Did mendeleev know about protrons?
No He didn't knew. Mendeleev proposed his periodic table in 1869 and he died in 1907. Protons was discovered by Rutherford after that (in 1920).
What did Dmitri Mendeleev arrange into a systematic chart?
the periodic table of elements In this table, elements having similar chemical properties are stacked up. The chemical properties are determined by how many free bonds an atom has open, which is related to how many electrons are in that element's outer shell.
Why couldn't Mendeleev predict the existence of the noble gases in the periodic table of elements?
He could predict other elements because there was an obvious gap, but he couldn't predict the noble gases because he didn't realize that there was going to be an 18th group since none of them were yet discovered. When he first started organizing the periodic table, the pattern still made sense even without the noble gases.
Mendeleev's periodic table did not include the group we now know as noble gases What might be the reason?
They were not discovered at that time.
What contributions to science were made by Dmitri Mendeleev?
He invented the periodic table. You must know what that means; he was the father of basic chemistry. Actually, he didn't discover the periodic table. He just arranged the only elements he had available in his day (not a lot) and arranged them based on patterns of # of protons, electrons, reactivity, etc. He didn't have an in-depth knowledge yet of electron configuration ;however, his "guess" turned out to have so many great implications that we now use his invention everyday everywhere.
What does the bonding power of an element mean?
Dmitri Mendeleev used the property of bonding power when developing his periodic table. Bonding power refers to the number of bonds an element forms during a chemical change. But Mendeleev could not explain bonding power because he didn't know about the structure of atoms. (search Dmitri Mendeleev's periodic table)
Why was mendeleev's periodic table valid at all?
His table was sorted by atomic mass, not atomic number. (the way today's periodic table is sorted) Mendeleev was almost right, but they did not know about protons at the time. (atomic number is the number of protons in an element) There would have been absolutely no way of him figuring out they were related to atomic number if he didn't even know about atomic number
