 |
|
|
|
|
|
Research Home
 Tools Art & Architecture Thesaurus Full Record Display
|
|
|
|
 |
|
|
|
 |
 |
|
|
|
|
|
|
Click the  icon to view the hierarchy. |
|
|
radium (nonferrous metal, <metal by composition or origin>, ... Materials (hierarchy name)) |
|
Note: Radioactive, soft, metallic chemical element, atomic number 88; a member of the group of the alkaline earth metals. It occurs in small amounts in pitchblende and other uranium ores. It undergoes spontaneous disintegration to form Radon gas and alpha rays. Bright white radium was formerly used to make luminous paints used in clock dials, doorknobs, and other glow-in-the-dark items prior to the 1970s.
|
| Terms: |
|
| radium (preferred,C,U,English-P,D,U,N)
|
| Ra (C,U,code,UF,U,U)
|
|
Facet/Hierarchy Code: M.MT |
Hierarchical Position:
|
|
|
Materials Facet |
|
|
.... Materials (hierarchy name) (G) |
|
|
........ materials (substances) (G) |
|
|
............ <materials by composition> (G) |
|
|
................ inorganic material (G) |
|
|
.................... metal (G) |
|
|
........................ <metal by composition or origin> (G) |
|
|
............................ nonferrous metal (G) |
|
|
................................ radium (G) |
Additional Parents:
|
|
|
Materials Facet |
|
|
.... Materials (hierarchy name) (G) |
|
|
........ materials (substances) (G) |
|
|
............ <materials by form> (G) |
|
|
................ <materials by chemical form> (G) |
|
|
.................... elements (chemical substances) (G) |
|
|
........................ radium (G) |
Related concepts: |
|
| related to .... |
radon |
| .................. |
(organic material, <materials by composition>, ... Materials (hierarchy name)) [300380555] |
|
Sources and Contributors: |
|
|
