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Dmitri Mendeleev is the scientist credited with creating the Periodic Table in 1869. He organized the elements based on their Atomic Mass, predicting the properties of elements that had not yet been discovered.
Aristotle~330 BCFour element theory: earth, air, fire & waterAntoine Lavoisier~1770-1789Wrote the first extensive list of elements containing 33 elements.
Distinguished between metals and non-metals.Some of Lavoisier's elements were later shown to be compounds and mixtures.Jöns Jakob Berzelius1828Developed a table of atomic weights.
Introduced letters to symbolize elements.Johann Döbereiner1829Developed 'triads', groups of 3 elements with similar properties.
Lithium, sodium & potassium formed a triad.
Calcium, strontium & barium formed a triad.
Chlorine, bromine & iodine formed a triad.Forerunner to the notion of groups.John Newlands1864The known elements (>60) were arranged in order of atomic weights and observed similarities between the first and ninth elements, the second and tenth elements etc. He proposed the 'Law of Octaves'.Newlands' Law of Octaves identified many similarities amongst the elements, but also required similarities where none existed. He did not leave spaces for elements as yet undiscovered.
Forerunner to the notion of periods.Lothar Meyer1869Compiled a Periodic Table of 56 elements based on the periodicity of properties such as molar volume when arranged in order of atomic weight.Meyer & Mendeleev produced their Periodic Tables simultaneously.Dmitri Mendeleev1869Produced a table based on atomic weights but arranged 'periodically' with elements with similar properties under each other. Gaps were left for elements that were unknown at that time and their properties predicted (the elements were gallium, scandium and germanium). The order of elements was re-arranged if their properties dictated it, eg, tellerium is heavier than iodine but comes before it in the Periodic Table.Mendeleev's Periodic Table was important because it enabled the properties of elements to be predicted by means of the 'periodic law': properties of the elements vary periodically with their atomic weights.William Ramsay1894Discovered the Noble Gases.In 1894 Ramsay removed oxygen, nitrogen, water and carbon dioxide from a sample of air and was left with a gas 19 times heavier than hydrogen, very unreactive and with an unknown emission spectrum. He called this gas Argon. In 1895 he discovered helium as a decay product of uranium and matched it to the emission spectrum of an unknown element in the sun that was discovered in 1868. (Helios is the Greek for Sun). He went on to discover neon, krypton and xenon, and realised these represented a new group in the Periodic Table. Ramsay was awarded a Nobel Prize in 1904.Henry Moseley1914Determined the atomic number of each of the elements.
He modified the 'Periodic Law' to read that the properties of the elements vary periodically with their atomic numbers.Moseley's modified Periodic Law puts the elements tellerium and iodine in the right order, as it does for argon and potassium, cobalt and nickel.Glenn Seaborg1940Synthesised transuranic elements (the elements after uranium in the periodic table)In 1940 uranium was bombarded with neutrons in a cyclotron to produced neptuniun (Z=93). Plutonium (Z=94) was produced from uranium and deuterium. These new elements were part of a new block of the Periodic table called Actinides. Seaborg was awarded a Nobel Prize in 1951.
The periodic table of elements was created by Dmitriy Ivanovich Mendeleyev.
the scientist who is involved in the periodic table is "MENDELEEV".
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Who was the scientist that organized the elements into a table that you use today and what was the table called?
Dmitri Mendeleev organized the elements into the periodic table in the 19th century. His table is known as the Periodic Table of Elements.
What scientist created the periodic table?
Dmitri Mendeleev, a Russian scientist, is credited with creating the periodic table of elements in the 19th century. He arranged the elements in order of increasing atomic mass and grouped them based on their chemical properties, leading to the development of the modern periodic table.
Which scientist is responsible for the Periodic Table?
Dmitri Mendeleev is credited with creating the Periodic Table of Elements in 1869. He arranged elements by increasing atomic weight and noticed periodic trends in their properties which led to the development of the modern periodic table.
Is fire in the periodic table?
Fire itself is not on the periodic table as it is a chemical reaction involving heat, fuel, and oxygen. Elements such as carbon, hydrogen, and oxygen that can be involved in fire are found on the periodic table.
How did the Russians scientist first arrange the elements?
Russian scientist Dmitri Mendeleev first arranged the elements in the periodic table based on increasing atomic mass and similar properties. He left gaps for undiscovered elements and predicted their properties, which led to the discovery of new elements. Mendeleev's periodic table laid the foundation for the modern periodic table we use today.
Who is the most famous scientist involved in developing the periodic table?
Dmitri Ivanovich Mendeleev
Which scientist discovered modren periodic table?
Moseley discovered the modern periodic table.
Who was the scientist that organized the elements into a table that you use today and what was the table called?
Dmitri Mendeleev organized the elements into the periodic table in the 19th century. His table is known as the Periodic Table of Elements.
What is dimitri mendeleev?
a scientist and the creator of the periodic table.
When did scientist Dmitri mendeleev make the periodic table?
1869
Who was The scientist who discovered and created a periodic table?
D. Mendelev
Who was the scientist who created the periodic table of the element?
Dmitri Mendeleev
Who is the scientist who recognized the periodic table for atomic number?
The scientist who recognized the periodic table for atomic number was Henry Moseley. He discovered that elements should be ordered by atomic number rather than atomic mass, which led to the modern understanding of the periodic table.
Who is responsible for the current arrangement of the periodic table?
Dmitri Medeleev was the initial creator of the Periodic Table. But, the most up to date Periodic Table was revised by a British scientist named Henry Moseley.
The present periodic table is based on the work of what scientist?
Demetri Mendeleev.
What was the name of the first scientist who grouped the elements an the periodic table?
MOSLEY
What scientist created the periodic table?
Dmitri Mendeleev, a Russian scientist, is credited with creating the periodic table of elements in the 19th century. He arranged the elements in order of increasing atomic mass and grouped them based on their chemical properties, leading to the development of the modern periodic table.
