To determine the age of fairly recent fossils and organic artifacts, it is possible to analyze the amounts of the isotopes 14C and 14N, because over time the 14C-which originated in the atmosphere-breaks down into 14N. What net change occurred for this to happen?
A) The 14C lost an electron.
B) The 14C gained an electron.
C) The 14C lost a proton.
D) The 14C gained a proton.
E) The 14C gained a neutron.
Correct Answer:
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