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The initial amount of carbon-14 is 100 g and the amount of carbon-14 dropped to 1 g after decay process. The half-life of carbon-14 is

The initial amount of carbon-14 is 100 g and the amount of carbon-14 dropped to 1 g after decay process. The half-life of carbon-14 is 5,730 y. Calculate the time taken to complete this decay process.

(a) 3.8x10* y

(b) 6.0x10° y

(c) 4.0x10° y

(d) 5.0x10° y

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