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strontium [Sr]
From Strontian, the town in Scotland where it was discovered. Discovered by Irish scientist Adair Crawford in 1790.
Occurrence:
1) obtained from ores celestite & strontianite
2) occurs only in combined form
3) several radioactive isotopes, including Sr-90
Characteristics:
1) silvery-yellow, soft malleable ductile metallic element
2) forms divalent cation Sr+2
a) metabolized in the body much like Ca+2
b) Sr+2 can replace Ca+2 in bone tissue (see Sr-90 & strontium ranelate)
Uses:
1) color TV tubes
2) crimson fireworks
3) production of some ferrites
4) radiopharmaceutical (strontium-89)
Related
periodic table
strontium ranelate (Protelos)
Specific
strontium-89
strontium-90 [90]Sr
General
alkaline earth metal
metabolic agent (metabolic modifier)
trace element
Properties
SIZE: AW = 87.62
atomic number
VALUE: 38
VALENCE: KR 5S2
Database Correlations
PUBCHEM correlations
References
- Webster's Ninth New Collegiate Dictionary, Miriam-
Webster Inc. Springfield, MA 1990
- Chemical & Engineering News, Sept 8, 2003