As a cross check it was also dated using radium and was found to contain 32% of its original amount. The half-life of carbon-14 is 5730 years. If we assume the dating procedures are accurate, what is the half-life of radium (to the nearest year)?
2006-10-23 06:29:17 · 2 answers · asked by thebeautiful08 1 in Science & Mathematics ➔ Mathematics
Are you using the radium or the carbon, or both? If you need the radium, we need the half life for that too.
Assuming that you just need to solve using the carbon 14, use the formula in your book. .73m= me^-(ln2/5730)*t, I think (I don't have the book that I teach out of now). Divide by m and use properties of logs to solve.
2006-10-23 06:42:47 · answer #1 · answered by raz 5 · 0⤊ 0⤋
Rather innacurate data, 'cos the figures given suggest a ½ life for Radium of 1582 years, whereas it's closer to 1620 years.
2006-10-23 14:02:48 · answer #2 · answered by JJ 7 · 0⤊ 0⤋