The periodic table of elements (often known simply as the periodic table) has been helping scientists with their work for a ...

This video is an interactive lesson in calculating an atom’s mass and atomic number. Atoms consist of a nucleus containing protons and neutrons, surrounded by electrons in shells. The numbers of ...

This video is an interactive lesson in calculating an atom’s mass and atomic number. Atoms consist of a nucleus containing protons and neutrons, surrounded by electrons in shells. The numbers of ...

At least 10 people are dead and many more injured as several fires broke out across Southern California amid historically dry ...

IN 1937, Perrier and Segrè showed that radioactive isotopes of element 43 could be formed by neutron or deuteron bombardment of molybdenum 1. Several chemical properties of element 43 were ...

IN 1940, we prepared the isotope of mass 211 of element 85 by bombarding bismuth with alpha particles accelerated in the 60-in. cyclotron of the Radiation Laboratory of the University of California 1.

The UK government has unveiled its 50-point AI Opportunities Action Plan, which has seen it commit to building out the ...

Scientists believe a 13-million-year-old snapping turtle fossil on display at the museum and art gallery of the northern territory is a previously unknown species. It's thought the giant carnivorous ...

At least 24 people are believed to be dead and many more injured as several fires broke out across Southern California amid ...

If your first reaction when thinking about the periodic table relates to Mr. White’s chemistry class in “Breaking Bad,” let’s ...

As they studied atomic disintegration, they kept seeing that the atomic number (number of protons in the nucleus, equivalent to the positive charge of the atom) was less than the atomic mass ...