The Periodic Table is something that almost everyone has studied at one time. It is a series of columns and rows that display the elements of the universe. It was invented by Dmitri Mendeleev.
Dmitri was a Russian scientist. He noticed that many elements had similar characteristics. He also noticed that characteristics of the elements changed when the weight increased.
Dmitri was born on February 17, 1869. The Periodic Table is considered one of the greatest contributions to science. Michael Gordin is a science historian at Princeton. He has answered some of the most frequently asked questions about the Periodic Table.
Why Has the Periodic Table Been Able to Stand the Test of Time?
Michael said that it has a lot of information. It is also one of the first things that people learn about in chemistry class.
How Did the Periodic Table Work?
Michael said that every element was organized by its atomic weight. It was also broken down into rows.
How Was the Periodic Table Different From the Other Tables From the 1860s?
Dmitri is the first scientist to put all of the elements on one table. Other scientists did not put all of the elements on the table because they did not know what the atomic weights were.
How Did Dmitri Find Elements That Had Not Been Discovered Yet?
When Dmitri was putting together the periodic table, he noticed that some of the elements seemed to be out of place. Fifteen years later, scientists discovered three more elements. They had the same properties that Dmitri thought that they would have.
How Has the Periodic table Changed Since Dmitri Created It?
The Periodic Table is now organized based on the Quantum Theory. This is the way that the electrons are positioned on the outer shell. Niels Bohn, who was a Danish physicist, created a periodic table with the Quantum Theory.
