H6 The radioactive isotope, C does not occur naturally but it is found at con-stant rate by the action of cosmic rays on the atmosphere. It is taken up byplants and animals and deposited in the body structure along with naturalcarbon, but this process stops at death. The charcoal from the fire pit of anancient camp has an activity due to 4C of 12.9 disintegrations per minute,per gram of carbon. If the percentage of 14C compared with normal Carbonin living trees is 1.35 × 10-¹⁰%, the decay constant is 3.92 × 10−¹⁰ s¯¹ andthe atomic weight = 12.0, what is the age of the campsite?[University of Liverpool]

Answered: Image /qna-images/answer/85869094-d889-4437-b59d-1df467d13de0.jpg

6 The radioactive isotope, 14C does not occur stant rate by the action of cosmic rays on th plants and animals and deposited in the bo carbon, but this process stops at death. The ancient camp has an activity due to 14C of per gram of carbon. If the percentage of C in living trees is 1.35 × 10-10%, the decay c 14 at 120 hot in tha of

6 The radioactive isotope, 14C does not occur stant rate by the action of cosmic rays on th plants and animals and deposited in the bo carbon, but this process stops at death. The ancient camp has an activity due to 14C of per gram of carbon. If the percentage of C in living trees is 1.35 × 10-10%, the decay c 14 at 120 hot in tha of