Stable isotopes are non-radioactive forms of atoms. Although they do not emit radiation, their unique properties enable them to be used in a broad variety of applications, including water and soil ...

The high relative abundance of these tellurium isotopes gives tellurium the greater ... so these elements are in the correct order in the modern periodic table.

The modern periodic table, arranged in rows and columns, was first introduced by Dmitri Mendeleev ... with production rates as low as one atom per week or less. 8 The presence of isotopes leads to ...

When the first periodic table was formulated by Mendeleev ... In addition, because technetium isotopes have short half-lives compared with the age of red giants, this finding suggested that ...

a long-time Y-12 mission starting with uranium isotopes during the war. The periodic table included promethium and three newly discovered elements heavier than uranium - americium, curium and ...

Since then many other isotopes of bohrium have been produced ... Instead they proposed bohrium, which became the officially recognised name in 1997. In the periodic table bohrium lies below chromium, ...