The periodic table of elements—also known as Mendeleev’s table—was developed in 1869 by Russian chemist Dmitri Mendeleev. ... noting their atomic masses and key chemical properties.

Electronegativity: Key Property of Periodic Table Elements and Its Impact on Chemical Bonding. Electronegativity, an essential characteristic of all elements in the periodic table, measures an atom's ...

Professor Jennifer Johnson, an astronomer at The Ohio State University, has re-created a periodic table color-coded with the cosmic origins of all the elements.

The key to this similarity among elements is found in the arrangement rather than the number of the electrons in their atoms. Only the electrons in the outer shell affect an atom’s chemical nature.

The firm said that the industry needs to look further into the periodic table and to untried elements for the answers to the development of Metalorganic Chemical Vapor Deposition (MOCVD) and Atomic ...