Sentence examples for uses of promethium from inspiring English sources

The known uses of promethium are due to its radioactivity.

In 1963, ion-exchange methods were used at ORNL to prepare about ten grams of promethium from nuclear reactor fuel processing wastes.

You may be carrying a tiny trace of promethium now because it has been used in the luminous paint on some watches.

All the isotopes of promethium are unstable; the longest-lived is promethium-145 (17.7-year half-life).

The physical and chemical properties of promethium are those of a typical rare earth.

Excluding nuclear isomers, a total of 38 radioactive isotopes of promethium are known.

Two allotropic (structural) modifications of promethium are known: the α-phase is double close-packed hexagonal with a = 3.65 Å and c = 11.65 Å at room temperature.

Because of its instability, chemical studies of promethium are incomplete.

Many properties of promethium rely on its position among lanthanides and are intermediate between those of neodymium and samarium.

Because of the short half-life of promethium isotopes, they should be formed near the surface of those stars.

It has been shown that europium is "responsible" for about 12 grams of promethium in the Earth's crust.