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Selenium (Se) has six naturally occurring isotopes, five of which are stable: 74Se, 76Se, 77Se, 78Se, and 80Se. The last three also occur as fission products, along with 79Se which has a half-life of 327,000 years, and 82Se which has a very long half-life (~1020 yr, decaying via double beta decay to 82Kr) and for practical purposes can be considered to be stable. 23 other unstable isotopes have been characterized, the longest-lived being 79Se with a half-life 327,000 years, 75Se with a half-life of 120 days, and 72Se with a half-life of 8.40 days. All other isotopes have half-lives less than 8 hours, most less than 38 seconds, which of these, 73Se is the most stable, with a half-life of 7.15 hours.
Wiki User
∙ 11y ago
Wiki User
∙ 9y agoThe element selenium has a total of 29 isotopes. Six of the isotopes are all naturally occurring and the remaining 23 are considered unnatural.
Wiki User
∙ 12y agoThere are 21 isotopes of Selenium ranging from mass numbers 69 to 89 according to the Table of Isotopes, CRC Handbook of Chemistry and Physics, 70th Edition.
Wiki User
∙ 11y agoYes. Selenium is an element
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Is selenium poisonous?
A:Yes they use it in atom bombs. A:There are no stable isotopes of uranium - it is all radioactive.
Is selenium an atomic or molecular element?
Selenium is an atomic element with 34 electrons and 34 protons. Stable versions (isotopes) have from 42 to 44 neutrons. It is necessary in very small amounts to support life, otherwise it is poisonous. Selenium at one time was the main source for transistors and diodes because of its semiconductor properties.
Are there any known isotopes in rutherfordium?
Rutherfordium has 15 isotopes.
What are the names of common isotopes of selenium?
Selenium has six naturally occurring isotopes, five of which are stable: 74Se, 76Se, 77Se, 78Se, and 80Se. The last three also occur as fission products, along with 79Se, which has a half-life of 327,000 years. The final naturally occurring isotope, 82Se, has a very long half-life (~1020 yr, decaying via double beta decay to 82Kr), which, for practical purposes, can be considered to be stable. Twenty-three other unstable isotopes have been characterized
Does ogygen have any isotopes?
no
How many isotopes in selenium?
6
What is the decay product of selenium?
You need to specify not just the element, but the specific isotope. Like most elements, selenium comes in several varieties, which in this case are called isotopes.
Whch group 16 element has only untstable isotopes is it sulfur polonuim tellurium selenium?
polonium
Is selenium poisonous?
A:Yes they use it in atom bombs. A:There are no stable isotopes of uranium - it is all radioactive.
Is selenium an atomic or molecular element?
Selenium is an atomic element with 34 electrons and 34 protons. Stable versions (isotopes) have from 42 to 44 neutrons. It is necessary in very small amounts to support life, otherwise it is poisonous. Selenium at one time was the main source for transistors and diodes because of its semiconductor properties.
What element has 48 nuetrons?
There are stable isotopes of four elements with 48 neutrons: selenium-82, krypton-84, rubidium-85, and strontium-86.
Are there any known isotopes in rutherfordium?
Rutherfordium has 15 isotopes.
Does selenium have any colour?
Different allotropes of Selenium have different colors. They can be Black, Grey, Red or Purplish.
What are the names of common isotopes of selenium?
Selenium has six naturally occurring isotopes, five of which are stable: 74Se, 76Se, 77Se, 78Se, and 80Se. The last three also occur as fission products, along with 79Se, which has a half-life of 327,000 years. The final naturally occurring isotope, 82Se, has a very long half-life (~1020 yr, decaying via double beta decay to 82Kr), which, for practical purposes, can be considered to be stable. Twenty-three other unstable isotopes have been characterized
Does ogygen have any isotopes?
no
Are there any artificial isotopes of fluorine?
Fluorine has 2 natural isotopes, 16 artificial isotopes and 1 artificial isomer.
Tin has the most stable isotopes of any element How many stable isotopes does it have?
It has 10
