A parent isotope is a radioactive form of an element that undergoes decay and produces daughter isotopes, which may in turn decay to produce other daughter isotopes.Continue Reading
A parent isotope decays by emitting particles that contain protons, neutrons and electrons. This loss of particles, known as radioactivity, transforms a parent isotope into daughter isotopes. The parent isotope uranium-238, for example, has 92 protons and 146 neutrons. When uranium-238 loses two protons and two neutrons through radioactivity, it becomes the daughter isotope thorium-234.
Because radioactive isotopes decay at a constant rate, the relative proportions of parent and daughter isotopes in a substance help to determine the age of that substance. Scientists have used the relative amounts of a parent isotope, uranium, and a daughter isotope, lead, to estimate the ages of the planets.Learn more about Atoms & Molecules
Argon is found in the Earth's atmosphere; it is also present in some potassium minerals due to the radioactive decay of isotope potassium-40. It is not found in compounds.Full Answer >
A pure element is a substance consisting of only one isotope of a single element. Isotopes are atoms that differ from the atomic weight usually associated with a particular element due to having a different number of neutrons in their nuclei.Full Answer >
An isotope is an atom that contains a different number of neutrons than its base chemical element. Each element is defined by its respective number of protons. The atomic number of an element refers to its proton count and establishes that particular element within the periodic table.Full Answer >
In nuclear science, a pure element is a chemical element that consists of a singular stable isotope – that is, atoms of the same element. Examples of a pure element are gold, aluminium and fluoride.Full Answer >