注目の話題: 離婚しても構わないでしょうか; 中2娘反抗期、愚痴です。しんどい; 俺の彼女がクソすぎる

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No.245　12/11/24 16:34
燻し銀三 ( 50代 ♂ Oe38xe ) あ+あ-

【Is the things created by the nuclear fission dangerous?】

《Nature of the things created by the nuclear fission and their half-value periods 半減期》

As to strontium,its nature resembles calcium,and it's tied up with the calcium.😨

Half-value periods of the strontium and iodine,the former are no less than 29 years,and the latter is eight days.Both of them continues to release beta ray.☝

《Half-value period》

When a reaction of the atomic nucleus advances,its energy also continues to decrease gradually.The energy becomes its half some day.It takes some periods.We call the periods half-value periods.☝

As for the half-value period,we have to be careful of one thing.For example,the iodine's half-value period is 8days.Does it mean the radioactive material of the iodine disappear when 17days pass?☝

It's no.At the first half-value period,the iodine becomes a half.At the next half-value period,the iodine becomes quarter.😃

In short,every half-value period,the radioactive material becomes half.It continues.