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Mendeleev invented the periodic table in 1869.
In those days there were still elements missing, they had no idea of what electrons were or how they related to chemistry, or how the nucleus related to atomic weight.;
but they're really the same charts.
Mendeleev's Periodic Table was arranged based on increasing Atomic Mass, with gaps left for undiscovered elements. The modern periodic table is arranged based on increasing atomic number, with elements grouped by properties and electron configurations. Additionally, the modern periodic table incorporates the concept of periods and groups, which was not present in Mendeleev's original table.
The modern periodic table was based on mendeleev's table however the modern one has the gaps filled (gallium, germanium and francium) that mendeleev left out as they had not yet been discovered.
the other change was to ignore the atomic weights rule and switch adjacent elements such as cobalt and nickel to better classify them into groups ( columns where valency is the same).
Hope that helps :)
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Describe two differences between Mendeleev's periodic table and the modern periodic table?
There are more elements and it's organized differently
Who developed your modern periodic table in 1869?
Dmitri Mendeleev is credited with developing the modern periodic table in 1869. He arranged the elements based on their atomic mass and chemical properties, predicting the properties of undiscovered elements. Mendeleev's table laid the foundation for the periodic table we use today.
Who proposed the modern periodic law?
The modern periodic law was proposed by the Russian chemist Dmitri Mendeleev in 1869. He arranged the elements in order of increasing atomic mass and grouped them based on similar chemical properties, leading to the development of the periodic table.
Who is considered to be the father of the periodic table?
Dmitri Mendeleev is considered the father of the periodic table. He created the first widely accepted version of the periodic table in 1869, arranging elements based on their properties and atomic weights. Mendeleev's table laid the groundwork for the modern periodic table.
Who is credited with the modern periodic table?
Dmitri Mendeleev is credited with the creation of the modern periodic table in 1869. He arranged the elements based on their atomic mass and properties, predicting the existence of yet-to-be-discovered elements and leaving gaps for them in the table.
Describe two differences between Mendeleev's periodic table and the modern periodic table?
There are more elements and it's organized differently
Who invited the modern periodic table?
mendeleev
Who is mendeleevs?
Dmitri Mendeleev was a Russian chemist; he proposed the modern Periodic Table of elements in 1869.
Who developed your modern periodic table in 1869?
Dmitri Mendeleev is credited with developing the modern periodic table in 1869. He arranged the elements based on their atomic mass and chemical properties, predicting the properties of undiscovered elements. Mendeleev's table laid the foundation for the periodic table we use today.
How was Mendeleev's periodic table inaccurate compared to the modern periodic table?
Not all the elements were included
What is the correct chronological order of scientists contributing to the modern periodic table?
Dmitri Mendeleev was the first to develop the modern periodic table in 1869. Later, Henry Moseley rearranged the elements by atomic number, which is the modern arrangement. So, Mendeleev comes before Moseley in terms of their contributions to the modern periodic table.
Modern periodic table is invented by?
The modern periodic table was invented by Dmitri Mendeleev in 1869. Mendeleev organized the elements by increasing atomic mass and grouped them based on similar chemical properties, which laid the foundation for the periodic table we use today.
Creator of the periodic table?
Dmitri Mendeleev is credited with creating the periodic table of elements. He organized elements by their atomic mass and properties, which led to the development of the modern periodic table.
Who developed the modern periodic table and wrote the periodic law?
Dimitri Mendeleev, a Russian chemist in 1869.
Who came up with periodic table?
Dmitri Mendeleev came up with the modern Periodic Table in 1869.
Who proposed the modern periodic law?
The modern periodic law was proposed by the Russian chemist Dmitri Mendeleev in 1869. He arranged the elements in order of increasing atomic mass and grouped them based on similar chemical properties, leading to the development of the periodic table.
What ways was Mendeleev's periodic table inaccurate compared to the modern periodic table?
Mendeleev's periodic table had gaps where he predicted the existence of undiscovered elements and did not account for isotopes or the concept of atomic number. The modern periodic table is arranged by atomic number instead of atomic mass and includes the concept of electron configuration, which Mendeleev's table did not consider.
