radiothorium
Definition
Noun: * A radioactive isotope of thorium: Specifically, it is the isotope of the element thorium with an atomic mass number of 228. It is a decay product in the thorium decay series.
Usage and Examples
- Scientific Context: The term is used almost exclusively in scientific literature, particularly in nuclear physics, chemistry, and geology, to refer to this specific isotope.
- The sample's activity was traced to the presence of radiothorium and its decay products.
- Geologists can use the ratio of radiothorium to other isotopes to date marine sediments.
Advanced Usage and Notes
- Chemical Symbol: It is often denoted as ²²⁸Th or Th-228.
- Historical Context: The name "radiothorium" was more common in early 20th-century literature when many radioactive substances were being discovered and named. In modern scientific contexts, the designation thorium-228 is generally preferred.
Variants and Related Words
- Thorium-228 (²²⁸Th): The modern, systematic name for radiothorium.
- Isotope: A form of an element with the same number of protons but a different number of neutrons. Radiothorium is an isotope of thorium.
- Radioisotope: A radioactive isotope. Radiothorium is a radioisotope.
Synonyms
- Thorium-228
- ²²⁸Th
Related Scientific Concepts
- Decay Series: Radiothorium is part of the thorium decay series (or thorium series), which is the sequence of radioactive decays beginning with thorium-232.
- Half-life: Radiothorium has a half-life of approximately 1.91 years, meaning half of a given amount will decay in that time.
Noun
-
radioactive isotope of thorium with mass number 228
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