August 16th, 2013 by admin | Uncategorized | | Comments Off
The historical development of the Periodic Table of the Elements can be traced to the first half of the 19th Century, European chemists such as DÃƒÂ¶bereiner in Germany and Newlands in England had noticed that certain physical and chemical properties of the individual elements tended to occur in groups and that these groups could be placed in a table that would allow such properties to be readily apparent. By grouping elements on the basis the relative weight of each element to other elements, http://tvsavings.org, it became apparent that an element’s atomic weight was a reliable predictor of its chemical properties. The Ã¢â‚¬Å“modernÃ¢â‚¬Â Periodic Table is credited to Russian chemist Dmitri Mendeleev, who was the first to leave blank spaces in his table where it was suggested that some undiscovered element should appear. To Mendeleev’s credit as a research chemist, each newly discovered element fit precisely into one of his blank spaces and, thus, its properties could also be predicted. It is Mendeleev’s Periodic Table that is most familiar today. In the 20th Century, advances in particle physics and quantum physics have led to the development of Periodic tables based on the fundamental properties of the subatomic particles that, taken together, account for the chemical and physical properties of elements that were observed well before the existence of such particles was known.
June 11th, 2013 by admin | Uncategorized | | Comments Off
The Future Of The Periodic Table Of Elements
A Brief Tour Through The History of Chemistry
In short, the periodic table is a concise arrangement of the chemical elements, which is based on atomic numbers, number of electrons and other chemical properties. It is one of the most significant aspects of chemical structures and chemistry. The periodic table was set into motion in 1789 by chemist Antoine Lavoisier. Moreover, it took many years for the periodic table to become modified and refined into the precise calculated system as it stands today. Rows and (more…)
April 20th, 2013 by admin | Uncategorized | | Comments Off
The periodic table of elements is the backbone of modern chemistry. Whether you know an aspiring pharmacist, physician or scientist or want to honor your inner geek, unique gifts featuring the periodic table of elements are a great idea. These gifts demonstrate your thoughtfulness and offer practical uses.
A shower curtain lets you turn cleaning time into learning time. Printed curtains are affordable, last for years and serve as an ongoing reminder of what an awesome shopper you are. Get a shower curtain featuring the periodic table of (more…)
January 23rd, 2013 by www.theschemata.com | Uncategorized | | Comments Off
Breaking Bad, a crime drama you might have seen if your provider happens to be http://www.direct.tv, is, among other things, a love letter to the field of chemistry as a whole. While scenarios in the show might seem a little farfetched, any chemistry major can find the inside jokes strewn about the show.
Everything from a person’s name to the actual logo of the show is an elemental Easter egg for chemistry majors to uncover – It’s like Lost for the periodic table of elements.
Let’s look at the logo for a moment:
In the logo, the “Br” in “breaking” and the “Ba” and “bad” are isolated from the rest of the word. If you have been paying attention to this blog so far, you would know that Br is the abbreviation for the chemical element “Bromine” and Ba is the abbreviation for the chemical element “Barium.”
Why is this significant?
One might think it’s simply a random use of various elements to spell the title and further strengthen the themes of chemistry. But have you ever seen bromine or barium in action?
Bromine is used for, among other things, powerful flame retardants. Barium, among other things, is used in chemical reactions for things such as fireworks. Bromine and barium are a lot like Walter and Jesse (the protagonists of the show). Walter, for the most part, is calm when things start to heat up and Jesse is passionate and explosive in almost all of his reactions.
You might be thinking this sounds like a stretch, but an interview with the write staff confirmed that elemental and chemical jokes such as these were intended. And you thought the periodic table was boring.
July 11th, 2012 by admin | Uncategorized | | Comments Off
The periodic table is a means of categorizing elements by their atomic weight, or the number of protons within the nucleus of an atom. The basic structure of the periodic table allows scientists to be able to know certain properties of elements based on those surrounding. The table is broken into block segments, eighteen in all.
The periodic table is a masterpiece of modern science. Many different scientists built on others’ works to design it, starting back as far as 1789. Granted, these (more…)
July 8th, 2012 by admin | Uncategorized | | Comments Off
The Periodic Table of Elements offers several opportunities to create lesson plans for teachers. One of the primary games could be a simple game of Bingo. The teacher could prepare Bingo cards ahead of time and hand them out to the students. The cards could have symbols or elements or a mix with the teacher reading the opposite for matches. This would create a system in which the students are using both the symbol and name to identify the elements.
July 4th, 2012 by www.theschemata.com | Uncategorized | | Comments Off
A periodic table is a tabulated presentation of chemical elements, which are arranged according to their properties. The present periodic table was developed by Dmitri Mandeleev, in 1869. The table makes it easy for scientists to see the similarities and relationships between the elements.
Parts of a Periodic Table
1. Elements: 117 elements are contained in the periodic table, and 94 of these elements naturally occur in the earth, while the rest are found in synthetic form. Each of the elements is enclosed in a block, which contains the element name, chemical symbol, atomic mass and atomic number.
2. Periods: A periodic table has 7 (more…)
July 3rd, 2012 by www.theschemata.com | Uncategorized | | Comments Off
The process of adding a new element to the existing Periodic Table would appear straightforward: Discover a new element, give it a name, and then add it to the end of the list. In reality, the discovery of the new element is far more difficult than one might imagine due to the following reason.
There are no known stable elements, or isotopes of known stable elements, with an atomic number higher than 83. This is because the neutrons in an element’s nucleus cannot overcome the electrical repulsive forces that exist between the protons in that same nucleus. Hence, such atoms (more…)
July 2nd, 2012 by www.theschemata.com | Uncategorized | | Comments Off
The historical development of the Periodic Table of the Elements can be traced to the first half of the 19th Century, European chemists such as D’bereiner in Germany and Newlands in England had noticed that certain physical and chemical properties of the individual elements tended to occur in groups and that these groups could be placed in a table that would allow such properties to be readily apparent. By grouping elements on the basis the relative weight of each element to other elements, it became apparent that an element’s atomic weight (more…)