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What element showed the usefulness of Mendeleev's periodic table?
Wiki User
∙ 7y ago
During World War One, in Germany Mendeleev lost both legs and arms but he still had a nose to notice the gases that had blown both his arms and legs off. Due to the gassiness of the air he had to cateogorise the more dangerous gases compared to ones that made you high. He then found a wooden table in the rubble from the explosion of the atomic bomb. He then thought "oh i have an idea, i will put the gases in the table" he then split it in columns and rows with various letters and numbers categorising the gases. It is proven true because many schools over the world now use this in todays learning environment. IT IS LEGENDARY. MENDELEEV FOR KING.
( We know this to be true as we are proffessors of oxford university who have 7 nobel prizes cheerio)
Wiki User
∙ 11y ago
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How did Henry Moseley revise mendeleevs periodic table?
In 1914 Henry Moseley found a relationship between an element's X-ray wavelength and its atomic number (Z), and therefore rearranged the table by nuclear charge / atomic number rather than atomic weight. Before this discovery, atomic numbers were just sequential numbers based on an element's atomic weight. Moseley's discovery showed that atomic numbers had an experimentally measurable basis.
How did Marie Curie challenge scientists ideas about the atoms?
There was an idea that an element could not be created or destroyed. Marie Curie showed that one element could become a new element. Destroying the old element to make a new one.
When did mosley create his periodic table?
1914. In 1914 Henry Moseley found a relationship between an element's X-ray wavelength and its atomic number (Z), and therefore resequenced the table by nuclear charge rather than atomic weight. Before this discovery, atomic numbers were just sequential numbers based on an element's atomic weight. Moseley's discovery showed that atomic numbers had an experimentally measurable basis.
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.
How can you tell if elements are isotopes when looking at several nuclear symbols of the same element?
You must check the mass number (A) - its place in the element's symbol (E) is: AE If A is different in the showed elements that means the these are different isotopes.
How did Henry Moseley revise mendeleevs periodic table?
In 1914 Henry Moseley found a relationship between an element's X-ray wavelength and its atomic number (Z), and therefore rearranged the table by nuclear charge / atomic number rather than atomic weight. Before this discovery, atomic numbers were just sequential numbers based on an element's atomic weight. Moseley's discovery showed that atomic numbers had an experimentally measurable basis.
Who gave the modern periodic table so?
Henry Moseley showed that atomic number is more fundamental property of an element than its atomic mass. It formed the base of modern periodic table.
What effect did the discovery of the gallium have on the acceptance of Mendeleev's table?
The close match between Mendeleevs prediction and the actual properties of new elements showed how usefullhis pariodic tabel could be.
What effects did the discovery of gallium have on the acceptance of Mendeleev's tables?
The close match between Mendeleevs prediction and the actual properties of new elements showed how usefullhis pariodic tabel could be.
What was henry moseley contribution to the periodic table?
In 1912, Henry Moseley, an English physicist showed that periodicity was a fucntion of the atomic number rather than of atomic mass. Our present periodic tables are now constructed using atomic number as the basis of arranging the elements and the periodic law being stated as, the physical and chemical properties of the element are periodic functions of their atomic numbers. This periodic recurrence of properties is emphasized by arranging the elements in a table such that elements with similar properties are aligned in a vertical column. This arrangement is called the Periodic Table.
What contribution did Mosley makers the development of the periodic table?
Henry Moseley showed elements in the periodic table should be in order by their atomic number instead of atomic mass.
What did Henry Moseley change about the periodic table?
Henry Moseley discovered a relation between the atomic number and the X-ray wavelength of a given chemical element; this was a physical confirmation of the periodic table and the order of elements in the table.
How did Henry Moseley affect the development of the periodic table?
He discovered that each element has its own atomic number.In 1914 Henry Moseley found a relationship between an element's X-ray wavelength and its atomic number (Z), and therefore resequenced the table by nuclear charge rather than atomic weight. Before this discovery, atomic numbers were just sequential numbers based on an element's atomic weight. Moseley's discovery showed that atomic numbers had an experimentally measurable basis.
How did Marie Curie challenge scientists ideas about the atoms?
There was an idea that an element could not be created or destroyed. Marie Curie showed that one element could become a new element. Destroying the old element to make a new one.
What is the contribution of Dobereiner to the periodic table?
He provided the base for the classification of elements he says the elements are atomic masses nearly same he arranged the atomic masses of the middle element is approximately the arithmetic mean of other two elements,He first gave us the ''Law of Triads''...where he made lists of three elements each, and showed that the mass of the middle element is approximately equal to the average mass of the other two elements.
Who is credited with the creation of the first periodic table?
Dmitri Mendeleev and Julius Lothar Meyer independently published there versions of the Periodic Table between 1869 and 1870. Mendeleev's version would become the foundation of the table used today.
When did mosley create his periodic table?
1914. In 1914 Henry Moseley found a relationship between an element's X-ray wavelength and its atomic number (Z), and therefore resequenced the table by nuclear charge rather than atomic weight. Before this discovery, atomic numbers were just sequential numbers based on an element's atomic weight. Moseley's discovery showed that atomic numbers had an experimentally measurable basis.
