Strontium-90 is a radioactive element formed in nuclear reactors. When an unusually high level of strontium is released into the air, such as occurred during the Chernobyl nuclear disaster in 1986, the strontium can be incorporated into the bones of exposed individuals. High levels of strontium can cause bone cancer and leukemia. Why does Sr-90 cause this particular health problem?

Q: Which is a halogen?

A: The element  belonging to group 17 in the periodic table are called  as halogens.   They are…

Q: 5 g of anhydrous strontium nitrate is added to a beaker and exposed to the air. After several hours…

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Q: 1. Compare objects with high kinetic energy to objects with low kinetic energy. How are different? *…

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Q: Write the balanced chemical equation for the reaction of solid strontium with iodine gas.

A:

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Q: What are lanthanide elements?

A: What are lanthanide ?

Q: How can rare earth elements cause water pollution?

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Q: Shade four elements in the outline Periodic Table below. 1. The last element in the first transition…

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A: Identify the symbol, mass number and atomic number ----

Q: Which element is the most reactive? A:Cs B:BA C: C D: S

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A: Autoionization of water takes place as follows:

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Q: Hydrogen in 1?C + 'H • → 1BN + 13N → IC + et + v 1°C + 'H → 14N + Y 14N + 'H + 10 + 150 → 15N + e+ +…

A:

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Q: why are noble gases so inert(unreactive)?

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