The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

The periodic table of the elements This figure is a tabular arrangement ... elements possess from five to seven free valence electrons and are therefore strongly electro-negative.

Just four years before Mendeleev announced his periodic table, Newlands noticed that there were similarities between elements with atomic weights ... that is given out depends on how strongly the ...

Elements in group 1 and group 2 are metals. Atoms of group 1 elements have one electron in their outer shell, and atoms of group 2 elements have two electrons in their outer shell. Elements in ...

organize chemical elements in rows and columns based on atomic number and the orbits of their outermost electrons, ...

But how many of these elements do you know? Test your knowledge and compete with other Live Science readers to see who can come top in our periodic table quiz. The periodic table of elements is a ...

Using lasers beams to measure the nuclear radius of isotopes at the end of periodic table. Elements at the end of the ...

Scientists have discovered a new way of creating superheavy elements by firing supercharged ion beams at dense atoms. The team believes this method could potentially help synthesize the hypothetical ...

An international team led by scientists of GSI/FAIR in Darmstadt, Johannes Gutenberg University Mainz and the Helmholtz ...

Where does the periodic table of chemical elements end and which processes lead to the existence of heavy elements? Researchers report on experiments to come closer to an answer. They gained insight ...

There is a theory in nuclear physics about an island of stability of superheavy elements. This is a potential zone in the upper part of the periodic table of as-yet-undiscovered elements that ...