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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
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoYear 1829; publishing of the article about triads.
Wiki User
∙ 9y agoDobereiner gave law of triads. He arranged three elements such that the mass of the middle element was equal to the average of other two.
Wiki User
∙ 9y agoDobereiner gave law of triads. The mass of centre element was equal to the average of other two
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Who discovered the periodic table manganese?
I think you mean "Who discovered the elementManganese?"Anyways, Manganese was discovered in 1774 by Johann Gahn.
What year was the periodic table published in?
The first slightly inaccurate Periodic Table of Elements was invented in the mid 1800's. Then Henry Mosley found the mistakes and re-corrected them in the early 1900's, which now is our current periodic table that we use.
In the periodic table what is a period?
A period on the periodic table is a row.This is the horizontal section of the periodic table.
Where is pg on the periodic table?
There is no Pg on the periodic table.
What the is an anion and where can you find it in the periodic table?
periodic table
Who invented the ciggarette lighter?
Johann Wolfgang Dobreiner in 1823.
What did Johann Dobereiner do to try and sort out the elements on the periodic table?
Because he was a good scientist
Who organized the first useful periodic table in the early 1800s?
Johann Wolfgang Döbereiner, the German chemist.
What did Johann Arfwedson discover?
One of the things he discovered was LITHUIM. It is on the periodic table as Li. Your Welcome, _Unknown_ :)
Where did Johann Wolfgang discover the periodic table of elements?
Firstly, he didn't discover it; the periodic table was invented. Secondly, he wasn't the one to invent it - although his work did contributem that was done by Gregor Mendeleev.
How was the periodic table found?
the periodic table was was not found it was created by a few scientists names, Johann Dobereiner, Alexandre Beguyer de Chancourtois, Dimitri Mendeleev,Lord Rayleigh, William Ramsey, and Henry Moseley.
Who discovered the periodic table manganese?
I think you mean "Who discovered the elementManganese?"Anyways, Manganese was discovered in 1774 by Johann Gahn.
What is the name of the table of elements?
A Periodic table The Periodic Table of the Elements.
How are the elements arranged?
atomic number
Who began doing the periodic table in the 1800?
The name of the person working on periodic table in exactly 1800 is unknown. However the persons around that time were Antoine-Laurent de Lavoisier in 1789 and Johann Wolfgang Döbereiner in 1817
What did Johannes dobereiner contribute to the atom?
Johann Döbereiner discovered patterns in atomic masses that foreshadowed the periodic table. Please see the link.
What is a group in a periodic table.?
A group in Periodic Table is the column of element in periodic table
