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What was the importantance of mendeleeve's periodic table to chemists?
Mendeleev's periodic table was important to chemists because it organized the elements based on their properties and atomic masses, allowing for predictions of the properties of undiscovered elements. This helped fill gaps in the table and led to the discovery of new elements. It also provided a framework to understand relationships between elements and their chemical behavior.
State the periodic law on which Mendeleev's Periodic table was based and why and how this periodic law changed?
Mendeleev's Periodic Table was based on the periodic law which states that the properties of elements are a periodic function of their atomic masses. This law changed with the discovery of atomic number by Moseley which stated that the properties of elements are a periodic function of their atomic numbers, leading to a more accurate and modern periodic table based on atomic number.
How did Mendeleev arrange chemical elements?
He arranged the elements in the increasing order of their atomic masses and repeating periodic properties.
Who listed the elements in a table accourding to their atomic masses?
Mandeleev who predicted periodic table.
How are the elements in the first periodic table arranged?
In the first Periodic Table by Mendeleev, he arranged the elements in the increasing order of their atomic masses and repeating properties.
What was the importantance of mendeleeve's periodic table to chemists?
Mendeleev's periodic table was important to chemists because it organized the elements based on their properties and atomic masses, allowing for predictions of the properties of undiscovered elements. This helped fill gaps in the table and led to the discovery of new elements. It also provided a framework to understand relationships between elements and their chemical behavior.
Define periodic law?
Properties of elements are a periodic function of their atomic masses.
How were the elements arranged in the spiral periodic table?
in order of their reletive atomic masses
How do you atomic masses vary throughout the periodic table of elements?
Each element has its own atomic mass.
State the periodic law on which Mendeleev's Periodic table was based and why and how this periodic law changed?
Mendeleev's Periodic Table was based on the periodic law which states that the properties of elements are a periodic function of their atomic masses. This law changed with the discovery of atomic number by Moseley which stated that the properties of elements are a periodic function of their atomic numbers, leading to a more accurate and modern periodic table based on atomic number.
How did Mendeleev arrange chemical elements?
He arranged the elements in the increasing order of their atomic masses and repeating periodic properties.
How were the atomic number and the atomic masses of the elements determined?
Atomic masses are determined by mass spectrometry. The atomic number is identic with the number of protons in the atom - depends on position in the periodic table.
What did Johann Dobereiner notice about the atomic mass of the middle element in a triad?
Johann Dobereiner observed that in his triads of elements, the atomic mass of the middle element was approximately the average of the atomic masses of the other two elements in the group. This observation suggested a relationship between the properties of elements and their atomic masses, laying foundational ideas for the development of the periodic table. His work highlighted an early attempt to categorize elements based on their similarities, influencing later chemists in their understanding of element relationships.
How did mandeleev arranged chemical elements?
Mendeleev arranged elements in his periodic table on the basis of increasing atomic masses.
What are some ways that elements are arranged on the periodic table of elements?
Mendeleev arranged the elements in a table in the increasing order of atomic masses and repeating periodic properties. In the modern long-form of periodic table, the elements are arranged in the increasing order of atomic number and repeating periodic properties.
What method did Dmitri use to organize the elements of the periodic table?
Dmitiri Mendeleev arranged the Periodic Table of elements in order of increasing atomic masses.
Why the atomic mass numbers listed for elements on the Periodic Table are not whole numbers.?
Why are atomic masses of elements not generally whole numbers? The atomic masses listed on the periodic table are a weighted AVERAGE of an element'sisotopes. ... An element's atomic number is the number of protons in its nucleus. Number of protons specifies atom type.
