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He didn't just arrange the elements based on Atomic Mass. If the chemical properties weren't similar - he'd change the order of them. He left gaps for elements that he knew would later be discovered and was successful in predicting the chemical properties of Ga and Sc which were later discovered.
What else can I help you with?
Which of mendeleev table show the elements following a pattern that repeats every seven elements?
It is The Periodic Table of Elements
How did Dmitri Mendeleev discover the periodic table with noble gases?
Dmitri Mendeleev did not discover the noble gases as they were not known at the time he created the periodic table. The noble gases were discovered later by other scientists. Mendeleev's periodic table focused on arranging elements by atomic mass and properties to show periodic trends.
How did errors in the Mendeleev periodic table begin to show up?
When it was discovered that Mendeleev's table was based on the wrong characteristic. He believed that it was the mass of the elements that affected their properties. It is, in fact, their atomic numbers
Who invernted the periodic table?
In 1869, a Russian chemist named Dmitri Mendeleev invented this table to help show trends in the behavior of chemicals.
How modern periodic law removed the defects of mendeleevs system of classification?
The properties of elements are the periodic function of their atomic numbers. REMOVAL OF DEFECTS OF MENDELEEV'S PERIODIC TABLE periodic table obtained on the basis of increasing atomic numbers has removed defects of Mendeleev's periodic table . 1) POSITION OF ISOTOPES : since the isotopes of the same elements have the same atomic number, they are given the same place in the table. 2) POSITION OF RARE EARTHS: These elements are separately placed at the bottom of table . similarly Acton elements ( which were discovered after Mendeleev ) are also placed at the bottom of the periodic table. 3) ANOMALOUS PAIRS. the arrangement according to the atomic number show that their placements are correct.
What contribution did Dmitri Mendeleev make in chemistry what was he able to do to show the valeu of his contribution?
Dmitri Mendeleev created the periodic table of elements, arranging elements by atomic mass and properties. His contribution revolutionized the field of chemistry by predicting the existence and properties of undiscovered elements. Mendeleev's periodic table provided a framework for understanding the relationship between elements and laid the foundation for modern chemistry.
What method did Dmitri Mendeleev use to organize the periodic table of elements?
Atomic weight.
Periodic table of the elements and who made it?
The periodic table of elements was created by Dmitri Mendeleev in 1869. It organizes elements by atomic number, electron configuration, and recurring chemical properties to show relationships between elements. It is a fundamental tool in chemistry for predicting chemical behavior and properties of elements.
How was mendeleevs periodic table like todays periodic table?
Mendeleev's periodic table arranged elements by increasing atomic mass and grouped elements with similar properties together. Today's periodic table is similar, but it is arranged by increasing atomic number, which reflects the number of protons in an atom's nucleus. Both tables also show periodic trends in properties as you move across and down the table.
Who is the founder of the periodic table?
The Russian Chemist, Dmitri Ivanovich Mendeleyev, founded the periodic table. Mendeleyev was the first person to show the similarities and trends in the properties of chemical elements, and he was acknowledged 50 years later when the 101st element was named after him, mendelevium.
What was Dmitri Mendeleev able to do show the value of his contribution?
Dmitri Mendeleev was able to demonstrate the value of his contribution to chemistry by accurately predicting the properties of undiscovered elements and leaving gaps in his periodic table for them, which were later filled by their discovery. This validated the organization of elements by atomic number and helped establish the periodic law.
What was the problem with the first periodic table?
The first periodic table by Dmitri Mendeleev did not account for the discovery of isotopes (elements with the same number of protons but different number of neutrons) and did not leave spaces for later-discovered elements. Additionally, it did not show the relationship between atomic number and chemical properties.
