Radium vs. Iridescent

Radiumnoun

a radioactive metallic chemical element (symbol Ra) with an atomic number of 88.

Radiumnoun

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.

Radiumnoun

an intensely radioactive metallic element that occurs in minute amounts in uranium ores

Radiumnoun

the chemical element of atomic number 88, a rare radioactive metal of the alkaline earth series. It was formerly used as a source of radiation for radiotherapy.

Radium

Radium is a chemical element with the symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table, also known as the alkaline earth metals.

Iridescentadjective

(not comparable) Producing a display of lustrous, rainbow-like colors; prismatic.

Iridescentadjective

Brilliant, lustrous, or colorful.

Iridescentadjective

Having colors like the rainbow; exhibiting a play of changeable colors; nacreous; prismatic; as, iridescent glass. See iridescence.

Iridescentadjective

varying in color when seen in different lights or from different angles;

Iridescentadjective

having a play of lustrous rainbow-like colors;