Americian -241 is used in smoke detectors as it produces alpha radiation which ionises air and is detected by a device. When smoke comes near the smoke detector the alpha particles ionises the differently with the smoke and this is detected by the device and the alarm goes off.
I look at it like this; validity is how valid the result is, so is it close to what the correct answer is, for example the heat of combustion, is the heat of combustion close to the known value. Reliability is how reliable your experiment is and it becomes more reliable when you repeat it...
I was expecting you the say I finished hsc I don't even wont to speak about it ;) but aye as long as you get what you need :D
and I would tell you how I went but I finished seriously don't even need to see, touch or talk about hsc again, hahahahaha nah they were actually really good thanks
Are the answers by any chance 1.987 u mass defect and 1.7883x10^17 J??
oops forgot to use amu sorry
sorry wrong equation is the energy released 1850.89 MeV
hey there, can you do me a favour and check if the fitzzy book I gave you has Andrew's name on the inside cover. Thanks and do you still have that past paper book I gave you??