Dmitri Ivanovich Mendeleev founded the periodic table but it is not the periodic table that we currently use.
The periodic table was developed by Russian chemist Dmitri Mendeleev in 1869. He arranged the elements based on their atomic mass and chemical properties, revealing repeating patterns in their behavior. Mendeleev's periodic table is a fundamental tool in chemistry for organizing and predicting the properties of elements.
It was Lavoisier who wrote the first extensive list of elements - containing 33 elements. He distinguished between metals and non-metals, dividing the few elements known in the 1700's into four classes.
Mendeleev's cards contained information about the atomic mass, chemical properties, and behavior of each element. He also organized the cards in a way that allowed him to determine patterns and relationships between different elements. This led to the development of the periodic table of elements.
Dmitri Mendeleev is credited with creating one of the first periodic tables that arranged elements into families based on their properties. This first version of the periodic table was organized by atomic weight and helped to predict the existence of unknown elements.
"The Periodic Kingdom" was written by Peter W. Atkins, a British chemist and author known for his work in physical chemistry and popular science books. The book explores the periodic table of elements in a creative and accessible way for readers of all levels.
answer is 4 above yr qstn (i wrote the answer there)
The periodic table was developed by Russian chemist Dmitri Mendeleev in 1869. He arranged the elements based on their atomic mass and chemical properties, revealing repeating patterns in their behavior. Mendeleev's periodic table is a fundamental tool in chemistry for organizing and predicting the properties of elements.
It was Lavoisier who wrote the first extensive list of elements - containing 33 elements. He distinguished between metals and non-metals, dividing the few elements known in the 1700's into four classes.
Mendeleev's cards contained information about the atomic mass, chemical properties, and behavior of each element. He also organized the cards in a way that allowed him to determine patterns and relationships between different elements. This led to the development of the periodic table of elements.
Dmitri Mendeleev is credited with creating one of the first periodic tables that arranged elements into families based on their properties. This first version of the periodic table was organized by atomic weight and helped to predict the existence of unknown elements.
who ever wrote this will get killed
because all of the other nations fielded him<--------Whoever wrote this is incorrect it has nothing to do with nations it has to do with the periodic table and why his first version was incomplete, but later on was corrected by Moseley.
Dimitri Mendeleev, a Russian chemist in 1869.
"The Periodic Kingdom" was written by Peter W. Atkins, a British chemist and author known for his work in physical chemistry and popular science books. The book explores the periodic table of elements in a creative and accessible way for readers of all levels.
The idiot before me wrote, : [Fl used to Fluorine, some old teachers might still use it. Now it goes by F.] Fl has never been used for fluorine, Fl is Flerovium (Previously Ununquadium (Uuq))
In 1863 56 known elements were discovered. Mendeleev's first attempt*) resulted in 9 elements in three rows (periods) and three groups (-1, +1, +2 valence groups):Cl - K - CaBr -Rb -SrI - Cs - Ba*) cit. from wikipedia :"I saw in a dream a table where all elements fell into place as required. Awakening, I immediately wrote it down on a piece of paper, only in one place did a correction later seem necessary."- - - - Mendeleev 1869, as quoted by Inostrantzev.
Elements in Families on the periodic table have similarities. Elements in the same family as iron are magnetic. The air force had a tremendous problem. Traditional lubricants were not working under the stresses their new machinery used. All of their lubricants were carbon based. They looked at the next element in the same family on the periodic table. It was silicon. They made a lubricant based on silicon. It worked fine. The first diodes and transistors were made with Germanium. It is an expensive metal to produce. It is on the periodic table right above silicon. This led to a number of experiments and attempts to produce a transistor using silicone. Finally after many tries, it worked. Inexpensive silicon transistors could replace expensive germanium ones. You wrote your question because silicon is below Germanium on the periodic table.