問題如下
how many atoms are in a radioactive sample with activity 12Bq and half life
15 days??
12Bq => 每一放射線元素單位時間得活動量
The number of decays per unit time is the activity of a radioactive
sample;the SI unit of activity is the becqueral(Bq)
請大家幫忙一下 感恩~~
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 163.23.231.88
※ 編輯: yanbighead 來自: 163.23.231.88 (03/08 23:53)