The radiocarbon dating method was developed in the I940\'s by Willard F. Libby a

Question

The radiocarbon dating method was developed in the I940's by Willard F. Libby and a team of scientists at the University of Chicago. It subsequently evolved into the most powerful method of dating late Pleistocene and Holocene artifacts and geologic events up to about 50, 000 years in age. The radiocarbon method is applied in many different scientific fields, including archeology, geology, oceanography, hydrology, atmospheric science, and paleoclimatology. For his leadership. Libby received the Nobel Prize in Chemistry in I960. Study the picture and answer these questions The atomic mass number (the sum of protons and neutrons in the nucleus of an atom) for N-14 and C-14 is the same. How many protons does N-14 have and how many docs C-14 have? 14 of each 7 & 7 6 & 8 7 & 6 8 & 6 C-14 forms from the interaction of Cosmic rays with N-14 by and C-14 reverts back to N-14 by beta decay and neutron capture electron loss and electron capture neutron capture and beta decay proton capture both ways Of the three isotopes of carbon, which is most abundant and which is radioactive? C-12 & C-13 C-13 & C-14 C-14 & C-12 C-12 & C-14 no way to know Generated in the upper atmosphere. C-14 makes up only 0.00000000010 percent of all carbon atoms. This is the same as I atom of C-14 per every atoms of Carbon. 1 thousand 1 million 1 Billion 1000 Billion or 1 Trillion no was to know Because of interaction and exchange with atmosphere and oceans, all living tissue maintains a fixed proportion of C-14. After death, the amount of C-14 begins to decrease. True False A C-14 date estimates the time since the death of once-living things, up to about 50, 000 s ears Which of the following materials CANNOT be dated by this method? bones wood soil pottery with imbedded charcoal volcanic ash from Pompei

Explanation / Answer

1. 7& 6

2. neutron capture

3.c-12 & c-14

4. 1 billion

5. True

6.Soil

Thank you

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