Because it took that many years for scientists to create andprove Hofmann's discovery.
The half-life of carbon-14 is about 5700 years. This means that in 5700 years, half of the original 200 grams (100 grams) will have decayed. To decay from 200 grams to 100 grams, it will take one half-life, or 5700 years.
It will take two half-lives for the number of carbon-14 nuclei to drop to a quarter of the original number. Since the half-life of carbon-14 is 5730 years, it will take 2 * 5730 years = 11460 years for this to occur.
The half-life of carbon-14 is approximately 5730 years. This means that after 5730 years, half of the original carbon-14 sample will have decayed. After another 5730 years (totaling 11,460 years), half of the remaining carbon-14 will decay.
The half life of Carbon 14 used for radioactive decay id 5,700 years
After 14 years, 1/16th of the original amount of cobalt-60 will remain, because 14 years is equivalent to 2.64 half-lives of cobalt-60 (14 years / 5.3 years/half-life). Each half-life reduces the amount of cobalt-60 by half, so after 2.64 half-lives, the original amount will be reduced to 1/2^2.64 which is approximately 1/16th.
Copernicium was first created on February 9, 1996 by Sigurd Hofmann, Victor Ninov et al.So more than 14 years.
To be convinced of the truth of a new element discovery the IUPAC/IUPAP Joint Working Party requires very long time to study and compare data; very rare are the research centers able to make similar experiments and to check the results.
14 Billion years
14
14 years
It Took 14 Years
14 to 20 years
Discover a Lovelier You was created on 2005-06-14.
It took 14 years to build Mount Rushmore.:)
Yes, parents have the legal right to take away their child's phone at any age, including when the child is 14 years old.
it took him 14 years
like 14 years give or take