are automatically placed based on the content of the page in which they appear.
The half-life is the amount of time it takes for one half of the initial amount of the parent, radioactive isotope, to decay to the daughter isotope.
Electron capture leads to a decrease of one in the charge on the nucleus.
The energy given off in this reaction is carried by an x-ray photon, which is represented by the symbol hv, where h is Planck's constant and v is the frequency of the x-ray.
This can result in the appearance of Ads we do not endorse and with which we seriously disagree.
We filter these ads as we find them, but this takes time. Carbon-14 dating is the standard method used by scientists to determine the age of certain fossilized remains.
The only problem is that we only know the number of daughter atoms now present, and some of those may have been present prior to the start of our clock. The reason for this is that Rb has become distributed unequally through the Earth over time.