Thu 5 Oct, 2017 01:15 pm - Calculate the age of a mineral using
235U decaying to 207Pb. Half-life is 713
million years. A laboratory determines
that, at present, there are 440,000 atoms
of 235U and that the amount of... (view)
Thu 5 Oct, 2017 10:55 am - Calculate the age of a mineral using 235U decaying to 207Pb. Half-life is 713 million years. A laboratory determines that, at present, there are 440,000 atoms of 235U and that the amount of 207Pb... (view)
