give you a tip:
another hint: learn about isotope radiation from man made oro and existant oro, non man made
you figure those two out and I'll drop a bomb on ya how it all ties in together with g.e., the stones, and hiking and photographing the supes, etc
hmmm......
[h=2]Isotopes of gold
Gold is monoisotopic consisting completely of 197Au. However there are a number of radioisotopes, some of which are listed. The gold isotope 198Au is used for treating cancer and other conditions. In the form of a gold colloid, 198Au has a diagnostic use for liver imaging and a therapeutic use in treatment of widespread abdominal carcinomatosis with ascites; carcinomatosis of pleura with effusion; lymphomas; interstitially in metastatic tumour. While there is a certain risk from the β-decay of 198Au the calculation is that the benefits outweight the risks. Additional information.[/h][h=3]Naturally occurring isotopes[/h][TABLE="class: chemistry-data, width: 570"]
This table shows information about
naturally occuring isotopes, their
atomic masses, their
natural abundances, their
nuclear spins, and their
magnetic moments. Further data for radioisotopes (radioactive isotopes) of gold are listed (including any which occur naturally) below.[TR]
[TH]Isotope[/TH]
[TH]Atomic mass (ma/u)[/TH]
[TH]Natural abundance (atom %)[/TH]
[TH]Nuclear spin (I)[/TH]
[TH]Magnetic moment (μ/μN)[/TH]
[/TR]
[TR]
[TD="align: left"]197Au[/TD]
[TD="align: left"]196.966543 (4)[/TD]
[TD="align: left"]100[/TD]
[TD="align: left"]3/2[/TD]
[TD="align: left"]0.148159[/TD]
[/TR]
[/TABLE]
In the above picture, the most intense ion is set to 100% since this corresponds best to the output from a mass spectrometer. This is not to be confused with the relative percentage isotope abundances which total 100% for all the naturally occurring isotopes.
[h=3]Radiosotope data[/h][TABLE="class: chemistry-data, width: 570"]
Further data for naturally occuring isotopes of gold are listed above. This table gives information about some
radiosotopes of gold, their
masses, their
half-lives, their
modes of decay, their
nuclear spins, and their
nuclear magnetic moments.[TR]
[TH]Isotope[/TH]
[TH]Mass[/TH]
[TH]Half-life[/TH]
[TH]Mode of decay[/TH]
[TH]Nuclear spin[/TH]
[TH]Nuclear magnetic moment[/TH]
[/TR]
[TR]
[TD="align: left"]194Au[/TD]
[TD="align: left"]193.96534[/TD]
[TD="align: left"]1.64 d[/TD]
[TD="align: left"]EC to 194Pt[/TD]
[TD="align: left"]1[/TD]
[TD="align: left"]0.075[/TD]
[/TR]
[TR]
[TD="align: left"]195Au[/TD]
[TD="align: left"]194.965017[/TD]
[TD="align: left"]186.12 d[/TD]
[TD="align: left"]EC to 195Pt[/TD]
[TD="align: left"]3/2[/TD]
[TD="align: left"]0.149[/TD]
[/TR]
[TR]
[TD="align: left"]196Au[/TD]
[TD="align: left"]196.966551[/TD]
[TD="align: left"]6.18 d[/TD]
[TD="align: left"]EC to 196Pt; β- to196Hg[/TD]
[TD="align: left"]2[/TD]
[TD="align: left"]0.591[/TD]
[/TR]
[TR]
[TD="align: left"]198Au[/TD]
[TD="align: left"]197.968225[/TD]
[TD="align: left"]2.694 d[/TD]
[TD="align: left"]β- to 198Hg[/TD]
[TD="align: left"]2[/TD]
[TD="align: left"]0.5934[/TD]
[/TR]
[TR]
[TD="align: left"]199Au[/TD]
[TD="align: left"]198.968748[/TD]
[TD="align: left"]3.14 d[/TD]
[TD="align: left"]β- to 199Hg[/TD]
[TD="align: left"]3/2[/TD]
[TD="align: left"]0.2715
[/TD]
[/TR]
[/TABLE]
So, now I want the "bomb" that tells us why that is important, J.A.