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Mendeleev calculated atomic number by increasing atomic number, which match the number of protons in an atomic nucleus of a single element

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What is the atomic number and how is it used to distiguinsh?

The atomic number is equal to the number of protons in an atomic nucleus; the atomic number is the order number of a chemical element in the periodic table of Mendeleev.


Did Mendeleev organize the elements by atomic mass or atomic number?

Mendeleev arranged elements in order of increasing mass. Later modern periodic table was discovered that contains elements arranged by atomic number.


Who arranged the periodic table in accordance to atomic number?

Mendeleev


What do you mean by atomic number?

Atomic number = Number of protons = Number of electrons (in the neutral state) Also the atomic number is number of a chemical element in the periodic table of Mendeleev.


What did mendeleev's ordering actually correspond to?

Atomic mass. The modern table is based on atomic number.


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


Which was NOT used by Mendeleev to organize his periodic table?

Atomic number was not used by Mendeleev to organize his periodic table. He organized the elements based on their atomic mass and properties, leaving gaps for undiscovered elements that were later filled.


An element atomic number is the what?

Atomic number = number of protons = number of electrons (in the neutral state) Also the atomic number is the number of the position of a chemical element in the periodic table of Mendeleev.


Who presented the periodic table according to atomic number?

Dmitri Mendeleev


What do you do with an atomic number and an atomic mass?

The atomic number is the number of a chemical element in the periodic table of Mendeleev; the atomic number is equal to the number of protons and electrons. The atomic mass is the mass of an atom expressed in relative atomic mass units.


What do the numbers on mendeleev's periodic table represent?

The numbers on Mendeleev's periodic table represent the atomic number of each element, which is the number of protons in the nucleus of an atom. This number determines the element's identity and its placement in the periodic table.


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.