Se-80 is the most common isotope.
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The most common isotope of carbon is carbon-12.The most common isotope of carbon is carbon-12.The most common isotope of carbon is carbon-12.The most common isotope of carbon is carbon-12.
The most common plutonium isotope is plutonium 239.
The most common plutonium isotope is plutonium 239.
K-39 isotope has 20 neutrons
The most common Selenium ion is Se2- the selenide ion. It is in the same group as oxygen and its most common ion in the oxide ion O2-.
The most common isotope of carbon is carbon-12.The most common isotope of carbon is carbon-12.The most common isotope of carbon is carbon-12.The most common isotope of carbon is carbon-12.
The most common isotope of silicon is the isotope 28Si: 92,23 %.
Selenium is not a common element but is necessary.
Vanadium-51 is the most common isotope.
The most common plutonium isotope is plutonium 239.
The most common plutonium isotope is plutonium 239.
The most common natural isotope is 238U: 99,2742 %.
K-39 isotope has 20 neutrons
The nucleus of selenium has 34 protons. The number of neutrons depends on the isotope and can vary from 31 in Se-65 to 60 in Se-94 isotope.
The most common Selenium ion is Se2- the selenide ion. It is in the same group as oxygen and its most common ion in the oxide ion O2-.
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.
Phosphorus-31 is the most common isotope. (Wikipedia)