LYCOS RETRIEVER 
Strontium: Calcium
built 647 days ago
Strontium is a member of the alkaline earth metals. The alkaline earth metals make up Group 2 (IIA) of the periodic table. The periodic table is a chart that shows how chemical elements are related to one another. Other alkaline metals include beryllium, magnesium, calcium, barium, and radium. Strontium occupies a middle position in the family. Chemically, it is more active than calcium or magnesium, above it in the periodic table.
Source:
Strontium is a mineral found below Calcium on the Periodic Table of Elements. It is a naturally occurring element and is found along with calcium in foods. Research has long suggested that Strontium may be an essential nutrient required for the normal development, structure, function, and health of the skeletal system. This is logical since trace amounts of strontium are found within the human skeleton. Strontium has an affinity for bone and is taken up at the bone matrix crystal surface. Clinical trials going back into the 1940s have supported this conclusion, and recent studies have provided evidence that it can offer unique nutritional support for the skeletal system- positively affecting bone metabolism leading to normalized bone density.*
Source:
Strontium-89 has a physical half-life of 50.5 days. It undergoes beta-minus decay with a beta emission of 1.463 MeV. Maximum range is about 8mm, therefore the greatest radiation dose is to the cortical and trabecular bone, with less to the radiosensitive marrow and minimal irradiation to adjacent soft tissues. The agent follows the biochemical pathways of calcium in the body (it is a calcium analog).
Source:
Two radioactive isotopes of strontium, Strontium-89 and –90, are created by atomic bomb explosions and are found in their radioactive fallout. This radioactive strontium is absorbed by the body and replaces calcium in the bones. Once they become part of the bone, they remain there for the lifetime of the organism, giving off radiation.
Source:
Strontium-90 emits a beta particle with, no gamma radiation, as it decays to yttrium-90 (... a beta-emitter). Strontium-90 has a half-life of 29.1 years. It behaves chemically much like calcium, and therefore tends to concentrate in the bones and teeth.
Source:
Strontium is just below calcium on the periodic table. That means that strontium behaves in much the same way that calcium does. Calcium eaten by humans and animals goes primarily to building bones and teeth. TV advertisements frequently recommend that young children drink milk. That's because milk contains calcium. It is used to build bones and teeth in growing children.
Source:
MORE ABOUT
Calcium