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it has been revised. also it is not organized anymore by atomic weight... it is organized by atomic number. Glenn Seaborg discovered the transuranic elements, from 94 to 102. one of the biggest changes was the whole new family of the noble gases.
firstly the fundamental basis of classification changed from Atomic Mass to atomic number secondly left up gaps were filled up
What else can I help you with?
What value was there in predicting the properties for gaps in Mendeleevs table?
DiscoVery of new elements
Why did discovery of argon threaten mendeleevs periodic table?
The discovery of argon in 1894 posed a challenge to Mendeleev's periodic table because it revealed the existence of a previously unknown group of elements, the noble gases, which did not fit into his established periodic structure. Mendeleev's table was based on the properties and atomic weights of elements, and the inclusion of argon suggested that there were gaps and potentially undiscovered elements. This prompted questions about the completeness and accuracy of the table, leading to further refinements in the periodic law. Ultimately, the discovery of noble gases helped to shape a more comprehensive version of the periodic table.
What were mendeleevs discoveries and predictions and discoveries abot the periodic table?
Mendeleev predicted that properties of elements are periodic function of atomic mass. He demonstrated it by creating a table.
Which two elements on the periodic tabel would have been placed in different groups in moseleys periodic table but not in mendeleevs?
bi and po
What changes may come that would change the periodic table?
Changes in the number of protons in an element's nucleus would alter its position on the periodic table. The discovery of new elements could lead to the expansion of the periodic table. Advances in technology and research may also reveal new properties of known elements, potentially causing revisions to the periodic table.
What changes were made to the periodic table after Dmitri mendeleevs discovery?
they changed the 3 new Elements.
Why the improvement in Mendeleevs periodic table was made?
To understand the concept of Periodic Table
What changes were made on the periodic table of elements after Dmitri Mendeleev's discovery?
alot of changes
Main idea of mendeleevs first periodic table?
In Mendeleev's periodic table, the elements were arranged in the increasing order of their atomic masses and repeating periodic properties.
What value was there in predicting the properties for gaps in Mendeleevs table?
DiscoVery of new elements
What were mendeleevs discoveries and predictions and discoveries abot the periodic table?
Mendeleev predicted that properties of elements are periodic function of atomic mass. He demonstrated it by creating a table.
Mendeleevs periodic table was useful because it enabled scientists to predict properties of unknown?
elements
What changes were to the periodic table after Dmitri Mendeleev discovery?
they changed the 3 new Elements.
Which two elements on the periodic tabel would have been placed in different groups in moseleys periodic table but not in mendeleevs?
bi and po
What changes may come that would change the periodic table?
Changes in the number of protons in an element's nucleus would alter its position on the periodic table. The discovery of new elements could lead to the expansion of the periodic table. Advances in technology and research may also reveal new properties of known elements, potentially causing revisions to the periodic table.
Who is mendeleevs?
Dmitri Mendeleev was a Russian chemist; he proposed the modern Periodic Table of elements in 1869.
Why did scientists try to improve Mendeleevs table?
Scientists tried to improve Mendeleev's periodic table to account for the discovery of new elements, better organize elements based on their properties, and to address inconsistencies in the original table. This led to the development of the modern periodic table with elements arranged in increasing atomic number and grouped based on similarities in chemical properties.
