strontium
stron tee uhm
- n a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite
- Deer ingest strontium with their forage.
- While strontium 90 is long-lasting (half life: 28 years), the half life of iodine 131 is only eight days.
- The major menace of radioactive strontium is that chemically it behaves too much like calcium.