Select the statement that is falseGroup of answer choicesC-14 dating is only appropriate for objects less than 60000 years oldA high activity corresponds to a large decay constantThe half-lives of radioactive nuclides are very similar in magnitudeThe decay constant (k) does not depend on the amount of sample

Select the statement that is falseGroup of answer choicesActivity is proportional to the number of nuclei in the sampleThe rate of decay depends on the number of nuclei presentC-14 dating is appropriate for objects up to one million years oldA high activity corresponds to a short half-life

The half-life for radioactive decay of 14C is 5730 years. An archaeological artifact containing wood had only 80% of the 14C found in a living tree. Estimate the age of the sample.

What kind of radioactive element is useful for dating an object?A.One that is present in very small amountsB.One that does not undergo transmutationC.One that decays very quickly into a stable formD.One with a half-life close to the age of the object

Which ONE of the following is the best evidence of the reliability of isotopic datingGroup of answer choicesanalyses using two radioactive isotopes yield the same agecomparing isotopic ages with relative age relationshipsmeasurable amounts of parent and daughter atoms are present in rocksmeasurements of decay have been found not to varymost rocks behave as closed systemsthe laws of physics predict that decay rates should be constant

Carbon-14 is an example of ________ dating.A.incrementalB.varveC.radioactiveD.correlative