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What did Johann Dobereiner and John Newlands find when they were trying to arrange the elements?
They both found patterns relating element properties to atomic weight, but when they tried to make them universal they broke down.
Doebereiner's triads worked for some elements, but he was unable to fit every element into a triad. Newlands' first publication involved only about 25 of the more than 60 elements known at the time; when his work was criticized on this basis, he tried to "force fit" all of the other elements, arriving at some quite bizarre groupings.
What else can I help you with?
Johann Dobereiner placed elements with similar properties in to groups of threes called what?
Johann Dobereiner grouped elements with similar properties into triads. In these triads, he observed that the properties of the middle element were the average of the other two.
What are the importance of the triads of Johann Dobereiner?
Dobereiner was a German scientist who was one of the first men to discover a pattern in elements ultimately leading to the periodic table you use in science today. Dobereiner saw a pattern in chemical properties of elements, he saw these patterns in threes. These groups are called Triads. Later he found physical property patterns as well.Hope this will help you.
Who was Dobereiner?
johann dobereiner had contributed towards the base of the periodic table and discovered that the elements shared similiar properties because there always was three elementzs in three groups that he later refered to as Triads.
What are the merits of dobereiner's triads?
In 1817, a German chemist, Johann Wolfgang Dobereiner tried to arrange the elements with same properties into groups. He found out that some groups had only 3 elements and called them 'Triads'. He showed that when the 3 elements were written in their order of increasing atomic masses……the atomic mass of the middle element was roughly* the average of the masses of the other two elements.For example:Li Na K6.9 23.0 39.0Average of Li & K = 22.95, i.e., *roughly 23.0But since all the elements known then also couldn't be classified as this......'Dobereiner's Triads', as the table is known……wasn't useful……but the attempts of Dobereiner encouraged other chemists to correlate the properties of elements with their atomic masses.Sidz
What did Johann dobreiner do for the periodic table?
Dobereiner classified elements into groups of three. He introduced law of triads according to this law every element which comes in the middle of such a group has atomic mass equal to average of the atomic masses of first and third element. for example Lithium(Li) 7 Sodium(Na) 21 Potassium(K) 39
Who preceded Mendeleev and Meyer with work on the periodic table?
Antoine Lavoisier and Johann Wolfgang Döbereiner made contributions to the development of the periodic table before Mendeleev and Meyer. Lavoisier proposed a classification system based on properties of elements, and Döbereiner developed the concept of triads, which grouped elements with similar properties.
Why was Johann Dobereiner trying to put the elements in order?
Dobereiner tried to discover a rational classification of chemical elements.
What was Johann dobereiner's idea for organizing elements?
to become sexy
Who are the parents of Johann Dobereiner?
Johann Wolfgang Dobereiner was a German chemist. His father was Johann Adam Dobereiner and his mother was Johanna Susanna Goring.
What limitation of Johann Dobereiner in periodic table?
Dobereiner gave triads for few elements. It could not be applied to other elements.So it was not considered further.
Johann Dobereiner placed elements with similar properties in to groups of threes called what?
Johann Dobereiner grouped elements with similar properties into triads. In these triads, he observed that the properties of the middle element were the average of the other two.
What did Johann Dobereiner do to try and sort out the elements on the periodic table?
Because he was a good scientist
Where did Johann Dobereiner live?
Germany
Contribution of Johann Dobereiner for the periodic table?
An organized tabular arrangement of chemical elements on the basis of their electron configurations, atomic number and recurring chemical properties is the periodic table of elements. Johann Wolfgang Dobereiner has a great contribution in periodic table of elements because he foreshadowed the periodic law for the chemical elements.
What state was Johann Dobereiner born in?
Germany
Who built the lighter?
Johann wolfgang dobereiner
Why did Johann dobereiner trying to order the elements?
Johann Dobereiner attempted to order the elements to find patterns and relationships between their properties. He proposed the Law of Triads, which grouped elements with similar properties into sets of three based on their atomic weights. This was an early attempt at organizing the elements before the more comprehensive periodic table was developed.
