Word:

Radium

Ra`di`um   Pronunciation: rā´dĭ`ŭm
n.1.(Chem.) An intensely radioactive metallic element found (combined) in minute quantities in pitchblende, and various other uranium minerals. Symbol, Ra; atomic weight, 226.4. Radium was discovered by M. and Mme. Curie, of Paris, who in 1902 separated compounds of it by a tedious process from pitchblende. Its compounds color flames carmine and give a characteristic spectrum. It is divalent, resembling barium chemically. The main isotope of radium found in pitchblende, radium-226, has a half-life of 1620 years, decaying first by alpha emission to radon.
Noun1.radium - an intensely radioactive metallic element that occurs in minute amounts in uranium ores
Synonyms: atomic number 88, Ra
acid, actual cautery, americium, astatine, atomic cocktail, berkelium, brand, brand iron, branding iron, caustic, cauter, cauterant, cauterizer, cautery, cobalt, corrosive, curium, einsteinium, electrocautery, escharotic, fermium, francium, hahnium, hot iron, lunar caustic, mendelevium, mordant, moxa, neptunium, plutonium, polonium, potential cautery, promethium, protactinium, radiocalcium, radiocarbon, radioelement, radioiodine, radioisotope, radiosodium, radon, tagged element, technetium, tracer, uranium
Translate Radium to Spanish, Translate Radium to German, Translate Radium to French
Browse
Radiotelegram
Radiotelegraph
Radiotelegraphic
radiotelegraphic signal
Radiotelegraphy
Radiotelephone
radiotelephonic
radiotelephony
radiotherapist
Radiotherapy
radiotherapy equipment
radiothorium
radious
Radish
Radish fly
radish plant
-- Radium --
radium therapy
Radius
Radius bar
radius of curvature
Radius of gyration
Radius vector
Radix
radome
Radon
Radoub
RADSL
Radula
Raduliform
Radyera
Radyera farragei
raetam
Definitions Index: # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

About this site and copyright information - Online Dictionary Home - Privacy Policy