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Did Mendeleev organize the elements by atomic mass or atomic number?
Wiki User
∙ 12y ago
Mendeleev arranged elements in order of increasing mass. Later modern Periodic Table was discovered that contains elements arranged by atomic number.
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∙ 9y ago
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How did chemists change Mendeleev's periodic table in early 1900s?
They used atomic number instead of Atomic Mass to organize the elements.
What properties of elements did mendeleev list as he began to organize the elements?
Mendeleev arranged the elements in the increasing order of their atomic masses and repeating properties.
What method did Mendeleev use to organize the periodic table of elements?
An element's atomic number, or how many protons it has.
What method did Dmitri Mendeleev use to organize the periodic table of elements?
Atomic weight.
What particle contributes to the atomic number?
Number of protons are taken. They are arranged by number of protons. Mendeleev arranged elements first according to atomic number
How did chemists organize the elements that were known?
Chemical elements are organized in the periodic table of Mendeleev.
How did chemists change Mendeleev's periodic table in early 1900s?
They used atomic number instead of Atomic Mass to organize the elements.
Did Dmitri Mendeleev organize elements by atomic numbers or atomic mass?
At first, he did it by atomic mass, but that didn't quite work out right, so he changed it to atomic number.
What properties of elements did mendeleev list as he began to organize the elements?
Mendeleev arranged the elements in the increasing order of their atomic masses and repeating properties.
Which was NOT used by Mendeleev to organize his periodic table?
Atomic Number
What method did Mendeleev use to organize the periodic table of elements?
An element's atomic number, or how many protons it has.
Mendeleev arranged the elements in his periodic table in order of?
Mendeleev arranged the elements by increasing atomic mass instead of like today by increasing atomic number.
What method did Dmitri Mendeleev use to organize the periodic table of elements?
Atomic weight.
How did later chemists change Mendeleevs periodic table?
They used atomic number instead of Atomic Mass to organize the elements
How are the modern table arranged differ than Mendeleev's table?
Mendeleev arranged the elements in order of increasing atomic mass.Moseley arranged the elements in order of increasing atomic number.
What is the Name of scientist who sorted the elements into order?
In 1913, almost fifty years after Mendeleev, Henry Moseley published the results of his measurements of the wavelengths of the X-ray spectral lines of a number of elements which showed that the ordering of the wavelengths of the X-ray emissions of the elements coincided with the ordering of the elements by atomic number. With the discovery of isotopes of the elements, it became apparent that atomic weight was not the significant player in the periodic law as Mendeleev, Meyers and others had proposed, but rather, the properties of the elements varied periodically with atomic number. When atoms were arranged according to increasing atomic number, the few problems with Mendeleev's periodic table had disappeared. Because of Moseley's work, the modern periodic table is based on the atomic numbers of the elements.
What contributes to the atomic number?
Number of protons are taken. They are arranged by number of protons. Mendeleev arranged elements first according to atomic number
