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 ...

That’s why this periodic table clock really caught our eye. [gocivici]’s idea is a simple one: light up three different elements with three different colors for hours, minutes, and seconds ...

There are currently 118 known elements on the periodic table, and we've put 20 of them below to create a brain game that ...

and since they must occupy the same place in the Periodic Table he has designated them isotopes. Thus the elements uranium X” ionium, and radio-actinium are istopic. A similar example is ...

He collected the X-Ray spectra of a variety of elements ... the highest atomic number in the periodic table. But element 61 was still not known to exist. During the Manhattan Project, workers ...

The modern periodic table, arranged in rows and columns, was first introduced by Dmitri Mendeleev in 1869. At the time, it included the known elements and their properties, but Mendeleev predicted ...

They are seeking good fortune in their hunt for an elusive entity: element 119. The periodic table looks complete, but it isn’t. The race is on to discover the table’s next row of elements ...

This year marks the 150th anniversary of the publication of Mendeleev’s Periodic Table of Chemical Elements in 1869. In celebration, the United Nations Educational, Scientific, and Cultural ...

The final piece in the puzzle wasn’t found until 1913, when Henry Moseley carried out work into the characteristic X-rays emitted by atoms ... number simply referred to an element’s positioning in the ...

The periodic table, as we know it today, has a beautiful history and it is a testimony to the ability of scientists to accommodate new discoveries of elements into their thinking and seek out patterns ...