Wiki User
∙ 13y agoThe order in the first attempt in the periodic table was in the increasing order of atomic weights of atoms. This gave 2 different places for isotopes of the same element with same properties and the same place for isobars with different properties. This was so because chemical properties of an element depends on its number of electrons which is basically given by the atomic number and not atomic weight. Again the lanthanides and actinides had different places inspite of having similar properties due to same atomic number.
Wiki User
∙ 13y agoThe order of elements in the Periodic Table is based on their atomic number. The first attempt, by Dmitri Mendeleev, was based on arranging elements by increasing Atomic Mass. This created inconsistencies in the arrangement that were later corrected when the modern periodic table was developed.
The first attempt at listing elements on the periodic table was made by Dmitri Mendeleev in 1869. He arranged the elements in order of increasing atomic weight and grouped elements with similar properties together. Mendeleev's periodic table laid the foundation for the modern periodic table used today.
The elements arranged according to their atomic number in the table are called periodic table.
The first periodic table was organized based on atomic mass.
the elements in the modern periodic table are arrange in the increasing order of their atomic numbers.
By Atomic Mass
The first attempt at listing elements on the periodic table was made by Dmitri Mendeleev in 1869. He arranged the elements in order of increasing atomic weight and grouped elements with similar properties together. Mendeleev's periodic table laid the foundation for the modern periodic table used today.
he developed the first periodic table in the increasing order of atomic masses of elements.but after the discovery of isotopesthis periodic table was not consider to be effective.
Because It has 1 proton. The elements on the periodic table are order by the number of protons.
In Mendeleev's periodic table, the elements were arranged in the increasing order of their atomic masses and repeating periodic properties.
- the periodic table is organized in periods and groups- chemical elements are listed in the order of the atomic number- the periodic table obey the law of periodicity
The elements arranged according to their atomic number in the table are called periodic table.
Mendeleev arranged the elements in the increasing order of their atomic masses and repeating periodic properties.
The first periodic table was organized based on atomic mass.
No, the first periodic table of elements was created by the Russian chemist Dmitri Mendeleev in 1869. Mendeleev arranged the elements in order of increasing atomic mass and noticed a periodic pattern in their properties, which led to the development of the modern periodic table.
In the first Periodic Table by Mendeleev, he arranged the elements in the increasing order of their atomic masses and repeating properties.
Dmitri Ivanovich Mendeleev
Mendeleev from Russia was the first person to organize the periodic table of the elements