This activity is measured in becquerels. Different radioactive isotopes have different half-lives. For example, the half-life of carbon-14 is 5,730 years, but the half-life of francium-223 is just ...

Australia's Open Pool Australian Lightwater (OPAL) research reactor has the potential to “make a real difference” in the effort to deal with the global shortage of radioactive isotopes used ...

Radiations of radioactive isotopes can be used for detecting various reactants ... Spectroscopy uses many unique nuclear properties of specific isotopes. For example, Nuclear Magnetic Resonance (NMR) ...

Generally, the heavier elements have radioactive isotopes while the lighter elements are stable. There are exceptions to this rule though. Many isotopes are present for a very short time because of ...

and the time it takes for one-half of a particular isotope to decay is its radioactive half-life. For example, about 1.5 percent of a quantity of Uranium 238 will decay to lead every 100 million ...

For example, most carbon (≈ 99 %) has 6 protons and 6 neutrons and is written as 12C to reflect its atomic mass. However, about 1 % of the carbon in the Earth’s biosphere has 6 protons and 7 neutrons ...

Stable isotopes are non-radioactive forms of atoms. Although they do not emit radiation ... Stable isotopes can be used by measuring their amounts and proportions in samples, for example in water ...

Active volcanoes were erupting on the far side of the moon 2.8 billion years ago, the first lunar samples returned from the ...

The Facility for Rare Isotope Beams achieved the highest-power beam of uranium ions ever in the world. "We're already now in ...