To decay 44 mg sample strontium to a mass of 11 mg it will take 56 years. A silvery metal called strontium is a naturally occurring, non-radioactive element.
The chemical element strontium has the atomic number 38 and the symbol Sr. Strontium is a soft, silver-white, yellowish metallic element that is an alkaline earth metal and has a strong reactivity to chemicals. When the metal is exposed to air, a thick layer of dark oxide forms.
Most people associate strontium with the vivid red colours that its salts give to fireworks and flares. Creating ferrite magnets and purifying zinc are two further uses for it. Strontium aluminate is a component of contemporary polymers and "glow-in-the-dark" paints.
According to studies, taking strontium supplements may help decrease bone pain, boost bone mineral density, and lower the risk of some fractures. More. Both bone formation and bone breakdown may be influenced by strontium.
In 28 years, you will have (1/2)(44)=22 mg left.
After another 28 years, you will have (1/2)(22)=11 mg left.
Total time to 11 mg = 56 years.
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