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Mostly by Atomic Mass, but in some cases by (educated) guess where he thought the measured atomic masses weren't correct.
What else can I help you with?
Who developed the original periodic table?
The first periodic table was developed by a Russian chemist and inventor named Dmitri Mendeleev, who arranged the elements by atomic mass. However, British chemist Henry Moseley later decided to order the elements by atomic number, thus creating a new arrangement. Moseley's table is the one used today.
When was gallium discovered and by who?
In 1871, the gallium was dicoversd by a Russian chemist Dmitri Mendeleev, who named it "eka-aluminium" on the basis of its position in his periodic table..
Whats the origin of spandex?
Spandex was invented in 1959 by Joseph Shivers, a chemist working for the chemical giant Du Pont. Spandex was invented in 1959 by Joseph Shivers, a chemist working for the chemical giant Du Pont.
Who found flourine?
Fluorine was discovered by a chemist named Joseph Henri Moissan in 1886.
Is chemist an adjective?
The noun 'chemistry' is a common, uncountable, abstract noun; a word for the branch of science that deals with the identification of the substances of which matter is composed; the chemical composition and properties of a substance or body; the complex emotional or psychological interactionbetween two people.
Who organized the elements into repeating groups of eight?
This was the Russian chemist Dmitri Mendeleev.
What did Mendeleev develop?
Mendeleev was a Russian chemist who organized the periodic table.
Who was the chemist that organized the elements into a chart?
Dimitri Mendeleev
Who is mendeleevs?
Dmitri Mendeleev was a Russian chemist; he proposed the modern Periodic Table of elements in 1869.
Who was the Russian chemist who first organized chemicals into the periodical table?
Dmitri Mendeleev
Who determined that the properties in elements are periodic?
The Russian chemist Dmitri Mendeleev.
Who is demetrius mendeleev and why is he important to chemistry?
Dmitri Ivanovich Mendeleev was a Russian chemist and inventor. He is credited as being the creator of the first version of the periodic table of elements. Using the table, he predicted the properties of elements yet to be discovered.
Who is known as the father of the peridioc table of elements?
Dimitri Mendeleev, a Russian chemist.
Who is Demitri Mendeleev and what did he do?
Dmitri Mendeleev was a Russian chemist who is best known for creating the periodic table of elements in 1869. He organized the known elements based on their atomic weights and properties, leaving gaps for undiscovered elements that were later confirmed. Mendeleev's work laid the foundation for our current understanding of the organization of the elements.
Who is Dimetri Mendeleeve?
Dimetri Mendeleev was a Russian chemist. He is credited for his version of periodic table which was better than anyone else's during that time. He organized elements almost accurately and formed the basis for the Modern Periodic Table.
Who was the man that built the periodic table of elements?
Russian chemist Dmitri Mendeleev in 1869
Who created the most accurate periodic table of elements?
This is the Russian chemist Dmitri Mendeleev.
