Übersetzung für "Promethium" in Englisch

Jacob Akiba Marinsky (1918 – September 1, 2005) was a chemist who was the co-discoverer of the element promethium.

Okay. Promethium, you hot little number.

Hanford does it another way, and generate too much promethium.

"The Element Promethium".

Charles DuBois Coryell (February 21, 1912 – January 7, 1971) was an American chemist who was one of the discoverers of the element promethium.

Only one of the 15 lanthanides is radioactive, promethium (Pm).

The measurement principle of the promethium basis weight sensor is based on the absorption of beta radiation by the paper web.

There are no exact knowledge of Seperierung of promethium.

Tritium and Promethium are contained in activated light-colors.

Lawrence Elgin Glendenin (November 8, 1918November 22, 2008) was an American chemist who co-discovered the element promethium.

Only the highly unstable and radioactive promethium "rare earth" is quite scarce.

Two lanthanides were present much too often, cerium in cancer victims and promethium in healthy people.

Its most striking characteristic is the presence of the unstable element promethium in its emission spectrum.

Rare earth elements are a set of 17 chemical elements in the periodic table, specifically 15 lanthanides (lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium) as well as scandium and yttrium.

These spaces are now known, respectively, to be the places of the radioactive synthetic elements technetium and promethium, and also the last two quite rare naturally-occurring stable elements hafnium (discovered 1923) and rhenium (discovered 1925).

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

Such elements are present predominantly in oxidic form in the finished zirconium dioxide catalyst and are, for example, lanthanide elements such as lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium.

The oxides or hydroxides of the rare earth elements (a) can be oxides or hydroxides of scandium, yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytteribium or lutecium, or mixtures of oxides and/or hydroxides of several of these elements, including monazite sand.

As gases, besides Krypton 85, tritium is also used and, as solid substances, promethium 147 or radium 226 is suitable.

On this blue star Promethium can be found, a very rare and radioactive chemical element. This is known from no other star.

Until well in the 60ties, the luminous dials of wrist watches and alarm clocks were marked with luminous paints containing Radium (Ra -226) or Promethium (Pm-147).

As “other metals”, which may be present in the composition of the inventive magnesium alloy, the following are to be mentioned: sodium, potassium, calcium, scandium, titanium, vanadium, chromium, iron, cobalt, nickel, copper, gallium, niobium, molybdenum, technetium, ruthenium, rhodium, palladium, silver, indium, tin, promethium, tantalum, tungsten, rhenium, platinum, gold and lead.

As “other metals”, which may be present in the composition of the magnesium alloy according to the invention, the following are to be mentioned: sodium, potassium, calcium, scandium, titanium, vanadium, chromium, iron, cobalt, nickel, copper, gallium, niobium, molybdenum, technetium, ruthenium, rhodium, palladium, silver, indium, tin, promethium, tantalum, tungsten, rhenium, platinum, gold and lead.

Except lanthanum, cerium, praseodymium and samarium which can be present in the alloy each up to the maximum of 0.3% by wt., preferred 0.2% by wt. and further preferred up to the maximum of 0.1% by wt., and the elements strontium, sodium, potassium, calcium, scandium, titanium, vanadium, chromium, cobalt, gallium, niobium, molybdenum, technetium, ruthenium, rhodium, palladium, silver, indium, tin, promethium, tantalum, tungsten, rhenium, platinum, gold and lead which preferably are present only as impurities in the ppm range and should each not exceed an amount of 500 ppm, preferred 400 ppm, further preferred 300 ppm, even further preferred 200 ppm and in particular preferred 150 ppm.