Strontium 90 is a radioactive isotope of strontium, a chemical element with the symbol Sr and atomic number 38. The spelling of this word can be explained using IPA phonetic transcription: /ˈstrɒntiəm/ and /ˌnaɪnˈti/. The first syllable, "stron," is pronounced with a short "o" sound, while the second syllable, "tium," is pronounced with a long "i" sound. The number 90 is pronounced as "nine" and "tee," with the stress on the second syllable. Remembering the correct spelling of strontium 90 is important for those working in nuclear industries or studying in the field of chemistry.
Strontium 90 is a chemical isotope that belongs to the group of alkaline earth metals. It is an artificially created radioactive isotope of strontium, and its symbol is Sr-90. It is formed as a byproduct during the process of nuclear fission, primarily found in spent nuclear fuel and fallout from nuclear weapons.
Strontium 90 possesses a half-life of approximately 28.8 years, which means that over time, half of its radioactivity decays. This isotope emits beta particles during its radioactive decay, and exposure to its radiation can be harmful to living organisms. Due to its chemical properties, strontium 90 can be easily absorbed by living organisms and subsequently accumulates in bones and teeth, leading to potential health risks.
The dangers associated with strontium 90 are primarily attributed to its ionizing radiation. Long-term exposure to this isotope is known to increase the risk of cancer or other serious health conditions, as it can damage cells and DNA. Consequently, its presence in the environment is a concern for public health and necessitates careful monitoring.
Due to its hazardous nature, the controlled and safe handling, storage, and disposal of strontium 90 are crucial to minimize potential risks to both humans and the environment. Its radioactivity and potential long-term effects on health make strontium 90 a significant concern in the context of nuclear waste management and the safeguarding of nuclear weapons.
The word "strontium" originates from the name of a small village named Strontian in Scotland, where a mineral containing strontium was first discovered in the late 18th century. The mineral was named strontianite after the village, and later the element itself became known as "strontium".
The number 90 in "strontium 90" represents the atomic mass of the element. Strontium 90 is an isotope of strontium, which means it has 90 protons and neutrons in its nucleus.