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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.
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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
Is selenium stable or unstable?
Selenium is generally considered stable in its elemental form. However, some of its isotopes are unstable and undergo radioactive decay.
How many does electron protons and neutrons does selenium have?
Selenium a non metal hexagonal grey element has 34 protons and electrons. The atomic structure of Selenium has 45 neutrons.
How many nuetrons are in selenium?
From wikipedia:"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 295,000 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. " 74Se is stable with 40 neutrons 76Se is stable with 42 neutrons 77Se is stable with 43 neutrons 78Se is stable with 44 neutrons 80Se is stable with 46 neutrons see the related link for a complete table on isotopes of selenium.
Is selenium poisonous?
A:Yes they use it in atom bombs. A:There are no stable isotopes of uranium - it is all radioactive.
How many isotopes in selenium?
6
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
Is selenium stable or unstable?
Selenium is generally considered stable in its elemental form. However, some of its isotopes are unstable and undergo radioactive decay.
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
How many does electron protons and neutrons does selenium have?
Selenium a non metal hexagonal grey element has 34 protons and electrons. The atomic structure of Selenium has 45 neutrons.
How many nuetrons are in selenium?
From wikipedia:"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 295,000 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. " 74Se is stable with 40 neutrons 76Se is stable with 42 neutrons 77Se is stable with 43 neutrons 78Se is stable with 44 neutrons 80Se is stable with 46 neutrons see the related link for a complete table on isotopes of selenium.
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 naturally occurring isotopes of technetium?
Uranium deposits may contain infinitesimal amounts of technetium isotopes.
Does selenium have any colour?
Different allotropes of Selenium have different colors. They can be Black, Grey, Red or Purplish.
