The following table lists a selection of isotope pairs that are used in making radiometric age determination.
Carbon-14 has a relatively short half-life, which makes it useful only for young, carbon-rich geologic materials, less than about 70,000 years old.
Carbon-14 has 8 neutrons in its nucleus, along with its 6 protons, which is not a stable combination.
That is why carbon-14 is a radioactive isotope-it contains a combination of protons and neutrons in its nucleus that is not stable enough to hold together indefinitely.
The different numbers of neutrons possible in the atoms of a given element correspond to the different possible isotopes of that element. Carbon-12 is the isotope of carbon that has 6 neutrons.
If a granite crystallizes with minerals containing radioactive isotopes, it is as though the rock crystallizes with a built-in batch of stopwatches that begin ticking away as soon as the granite has cooled…..The commitment to high-quality results and service has earned BETA the recognition of governmental, academic, and commercial organizations worldwide.All analyses performed internally by full-time professionals The lab has a dedicated full-time staff of technicians and scientists working overtime, if necessary, to meet its promised delivery times.After one half-life has passed, there are 16 red dots and 16 green dots.After two half-lives have passed, there are 8 red dots and 24 green dots.Eventually, it will undergo a spontaneous nuclear reaction and turn into a stable daughter product – a different isotope, which is not radioactive.