QUÉ SIGNIFICA PROMETHIUM EN INGLÉS
Prometeo
Promethium, originalmente prometheum, es un elemento químico con el símbolo Pm y número atómico 61. Todos sus isótopos son radiactivos; Es uno de los dos únicos elementos que se siguen en la tabla periódica por elementos con formas estables, una distinción compartida con el tecnecio. Químicamente, promethium es un lantánido, que forma sales cuando se combina con otros elementos. Prometio muestra sólo un estado de oxidación estable de +3; Sin embargo, pueden existir algunos compuestos +2. En 1902, Bohuslav Brauner sugirió que había un elemento con propiedades intermedias entre las de los elementos conocidos neodimio y samario; Esto fue confirmado en 1914 por Henry Moseley quien, después de haber medido los números atómicos de todos los elementos entonces conocidos, encontró que no había ningún elemento con el número atómico 61. En 1926, un grupo italiano y un grupo americano afirmó haber aislado una muestra del elemento 61 ; Ambos "descubrimientos" pronto resultaron ser falsos.
definición de promethium en el diccionario inglés
La definición de promethium en el diccionario es un elemento radiactivo de la serie de lantánidos producida artificialmente por la fisión del uranio. Símbolo: Pm; número atómico: 61; vida media del isótopo más estable, 145 μm: 17.7 años; valencia: 3; punto de fusión: 1042 ° C; punto de ebullición: 2460 ° C.
10 LIBROS DEL INGLÉS RELACIONADOS CON «PROMETHIUM»
Descubre el uso de
promethium en la siguiente selección bibliográfica. Libros relacionados con
promethium y pequeños extractos de los mismos para contextualizar su uso en la literatura.
1
The History and Use of Our Earth's Chemical Elements: A ...
Through beta decay, Nd-147 then becomes Pm-147 with a half-life of 2.64 years.
Other complicated neutron and beta decay reactions from these radioactive
elements are possible. Abundance and Source Promethium is not found in
nature.
2
Handbook of Materials Science: General Properties
Promethium (Prometheus, who, according to mythology, stole fire from heaven)
— Pm; at. no. 61 ; mp ~1080°C; bp 2460°C(?); sp gr . . .; valence 3. In 1902
Branner predicted the existence of an element between neodymium and
samarium, ...
3
Nuclear and Radiation Chemistry
Thus promethium has not been isolated from natural sources. PROPERTIES OF
COMPOUNDS OF PROMETHIUM (a) Promethium is a typical element of the
lanthanide series, whose electronic configuration is 4f55s25p66s2. (b)
Promethium ...
4
Regulated Chemicals Directory 1994
... HYDROCHIDRIDE PROMETHIUM 141 PROMETHIUM 143 PROMETHIUM
144 PROMETHIUM 145 PROMETHIUM 146 PROMETHIUM 147 PROMETHIUM
148 PROMETHIUM 148M PROMETHIUM 149 PROMETHIUM I50 PROMETHIUM
...
5
Dictionary of Inorganic Compounds
Br3Pm Promethium(///) bromide (PmBr,), IC-001978 C6H20022Pm2 Promethium(
///) oxalate; Decahydrate, in IC-005655 C4012Pmj Promethium(///) oxalate, IC-
005655 C15H21°6Pm Tris(2,4-pentanedionato-O,O') promethium(///), IC-009010
...
contain promethium at a concentration of four parts per quintillion (1018) by mass
.3518 It was calculated that the equilibrium mass of promethium in the earth's
crust is about 560 g due to uranium fission and about 12 g due to the recently ...
7
Isotopes of
Promethium:
Promethium-147,
Promethium-126, ...
Source: Wikipedia. Pages: 162. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge.
8
The Code of Federal Regulations of the United States of America
... 144 Praseodymium- 145 Praseodymium- 147 Promethium-141 Promethium-
143 Promethium-144 Promethium-145 Promethium-146 Promethium-147
Promethium-148m Promethium-148 Promethium-149 Promethium-150
Promethium-151 ...
9
Promethium: Isotopes of
Promethium,
Promethium Compounds, ...
Purchase includes free access to book updates online and a free trial membership in the publisher's book club where you can select from more than a million books without charge.
10
Nature's Building Blocks: An A-Z Guide to the Elements
Promethium-147's emission of low-energy (3-particles is also used in meters that
can measure the thickness of sheet steel - and even paper. Promethium isotopes
will generate X-rays when their p-rays impinge on heavy metals and it may one ...
10 NOTICIAS EN LAS QUE SE INCLUYE EL TÉRMINO «PROMETHIUM»
Conoce de qué se habla en los medios de comunicación nacionales e internacionales y cómo se emplea el término
promethium en el contexto de las siguientes noticias.
Public forum scheduled on plan to transfer 51 students out of …
... not including furniture, utility hookups, handicap accessible ramps, and electronic teaching aides such as Promethium boards and computers ... «Kingsport Times News, Jul 15»
Mining News: News Nuggets: Ucore orders pilot REE separation plant
... each of the lanthanides with the exception of promethium, plus yttrium and scandium to uniformly high purity. In addition to REE separation, ... «Petroleum News, Jul 15»
Virginians Are Breathing Easier (Clean Virginia, Part 7)
... nitrogen oxide, sulfur dioxide, mercury, and promethium all plummeted. The station was converted as part of a process to obtain an air permit ... «WMRA, Jul 15»
RARE EARTHS: Ucore to build SuperLig-One pilot plant
Each of the lanthanides – from lanthanum to lutetium, with the exception of promethium, plus yttrium and scandium – will be refined to a high ... «Canadian Mining Journal, Jul 15»
Rare Earth Elements Market - Global Industry Analysis, Trends And …
... ytterbium, praseodymium, gadolinium, terbium, dysprosium, neodymium, promethium, samarium, europium, holmium, erbium, and lutetium). «CSO Australia, Jul 15»
Marvel Blasts 'Iron Man' Copyright Claims; Wants Case Tossed Or …
Promethium Armor and Iron Man Safe Armor both have plates on... Vinny Freeman (@TongueTied25). 4 weeks. "IronMan" "Armored Avenger" ... «Deadline, Jun 15»
Desolate Pathway Releasing New Single "Into The Realms"
Oct 31st: Fest of Hades, Wakefield w/ Hamerex, Kaine, Aonia, Promethium and more. Nov 13th: The Haunt, Brighton, w/ Temperance, Seventh ... «Metal Underground, Jun 15»
Deadpool vs Death Stroke
Broad Sword: Slade carries a promethium broad sword that is more durable than Titanium. The durability of the sword mixed with his ... «moviepilot.com, Jun 15»
How Batman will go toe-to-toe with Superman.
But still the strongest material on Earth is titanium (in the DCU its actually promethium, a metal stronger and lighter than titanium), that is like ... «moviepilot.com, Jun 15»
My Suicide Squad
In his arsenal, Deathstroke carries a set of dual machine guns, a sniper rifle, a promethium sword, an energy lance that fires concussive laser ... «moviepilot.com, May 15»