Essays Tagged: "Half-life"

Human Evolution and the Fossil Record

esent allows for a date to be assigned to objects near the sample. However, due to potassium's high half-life (1.3 billion years), it is only useful as a dating technique for finds older than 500,000 ...

(7 pages) 183 0 3.0 Jan/1997

Subjects: Science Essays > Earth Sciences > Geology & Geosciences

Radiocarbon Dating: Merits and Drawbacks.

dioisotope dating methods, such as potassium-argon and uranium-238. Because of its relatively short half-life, radiocarbon dating has been most useful to archaeology (geology requiring a much larger t ... cays into stable nitrogen. This gives us a clock that starts ticking the moment something dies. The half-life of a radioactive substance is defined as the time it takes for a set amount of radioactive ...

(10 pages) 134 2 4.7 Apr/2003

Subjects: Science Essays > Archaeology

Nuclear Power, Is it safe?

from these shattered stars aggregated together to form ourplanet. Uranium-238 has an extremely long half-life (4.5 billion years) and,therefore, is still present in fairly large quantities. U-238 make ...

(4 pages) 86 1 4.8 May/2003

Subjects: Law & Government Essays > Military & International Conflicts & Security

Iron- about its elemental properties and history of the metal.

on the fourth. It has a relatively average number of energy levels. The following is a list of the half-life for different isotopes. As it shows on the list it has extremely stable nuclei.Isotope Hal ...

(3 pages) 30 0 5.0 Feb/2004

Subjects: Science Essays > Earth Sciences > Geology & Geosciences

Information on the radioisotope: Cobalt 60 used in medicine and in industry

, which is very unstable and decays into nickel 60.c) How does the radioisotope decay and state its half-life.Cobalt-60 undergoes radioactive decay with the emission of beta particles and strong gamma ... of beta particles and strong gamma radiation. It ultimately decays to non-radioactive nickel with a half-life of 5.24 years.d) Identify those properties of the radioisotopes that make it suitable for ...

(3 pages) 20 0 3.0 May/2006

Subjects: Science Essays > Chemistry

The Decaying Of Radioactive Isotopes

y decay at a rate that is characteristic to the isotope. The rate of decay is a fixed rate called a half-life. The half-life of a radioisotope describes how long it takes for half of the atoms in a gi ...

(1 pages) 20 1 0.0 May/2006

Subjects: Science Essays > Chemistry

Carbon Dating

mputer generated image of what he might have looked like. BIBLIOGRAPHY ...

(2 pages) 2 0 0.0 Aug/2014

Subjects: Science Essays > Chemistry