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What kinds of predictions did Mendeleev make using his table?
By placing the elements in order of their Atomic Mass then grouping them based on similar chemical properties, Mendeleev recognized that there were gaps in the pattern he made where elements should be. He predicted there were some elements yet to be discovered and predicted their chemical properties. The elements he predicted were later discovered and named germanium, gallium, and scandium.
What does discovering polonium and radium mean?
The simple meaning is that new chemical elements were discovered.
How many elements were there on the periodic table in 1960?
There were 102 known elements on the periodic table in 1960.
Why did Dimitri Mendeleev predict that more elements with specific properties would be discovered?
because,he predicted some possible chemical formulas of the then undiscovered elements between the elements in his periodic table. so he concluded that more elements with specific properties would be discovered.
Who invented modern system of chemical elements?
Dmitri Mendeleev is credited with developing the modern periodic table of elements in the 1860s. He arranged the elements based on their atomic mass and chemical properties, predicting the existence of elements that had not yet been discovered.
How many elements were discovered by the end of 18th century?
Approx. 25 chemical elements were known in 1800.
Where all the elements discovered at the same time?
No, elements were not all discovered at the same time. Elements have been discovered over time through various scientific methods such as chemical analysis, experimentation, and observation. The periodic table continues to be updated as new elements are discovered.
What kinds of predictions did Mendeleev make using his table?
By placing the elements in order of their Atomic Mass then grouping them based on similar chemical properties, Mendeleev recognized that there were gaps in the pattern he made where elements should be. He predicted there were some elements yet to be discovered and predicted their chemical properties. The elements he predicted were later discovered and named germanium, gallium, and scandium.
What was a logical way to group elements as more and more elements were discovered?
The logical way is to be remembered that chemical properties of elements have a periodic character.
How elements were discovered?
Please attentively consult the link below.
What does discovering polonium and radium mean?
The simple meaning is that new chemical elements were discovered.
How many elements were there on the periodic table in 1960?
There were 102 known elements on the periodic table in 1960.
Who discovered the chemical elements kripton neon and xenon?
Neon, Krypton, Xenon were discovered in 1898 by William Ramsay and Morris William Travers.
Why did Dimitri Mendeleev predict that more elements with specific properties would be discovered?
because,he predicted some possible chemical formulas of the then undiscovered elements between the elements in his periodic table. so he concluded that more elements with specific properties would be discovered.
Who invented modern system of chemical elements?
Dmitri Mendeleev is credited with developing the modern periodic table of elements in the 1860s. He arranged the elements based on their atomic mass and chemical properties, predicting the existence of elements that had not yet been discovered.
What year did Marie Curie invent the polonium?
Chemical elements are not invented; they are discovered or prepared.Polonium was discovered (not invented) by Marie Curie and Pierre Curie in 1898.
How many additional radioactive element discovered since Marie Curie discovered radium and polonium?
All chemical elements after uranium and promethium, technetium.
