Multiple Choice
A sample of wood has been recovered by an archaeologist.The sample is sent to a laboratory,where it is determined that the activity of the sample is 0.144 Bq/g.By comparing this activity with the activity of living organic matter,which is 0.230 Bq/g,the scientist determines how old the wood sample is,or more precisely,when the tree that the sample came from died.Carbon-14 has a half-life of 5730 years.If the activity of living matter has been constant over time,how old is the sample of wood?
A) 3870 years
B) 4250 years
C) 4590 years
D) 2630 years
E) 2940 years
Correct Answer:
Verified
Correct Answer:
Verified
Q21: All nuclei of a given element have
Q22: During β<sup>+</sup> decay<br>A)a neutron is transformed to
Q23: Two deuterium nuclei, <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6214/.jpg" alt="Two deuterium
Q24: The half-life of radon-222 is 3.83 d.If
Q27: The mass number of an atom is
Q28: An air sample is contaminated with <sup>15</sup>O,which
Q29: During β<sup>-</sup> decay<br>A)a neutron is transformed to
Q30: A person receives an absorbed dose of
Q31: A radioactive isotope of atomic number Z
Q104: A β<sup>-</sup> particle is also known as<br>A)an