Vanadium-51 is the most common isotope.
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 %.
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 %.
Se-80 is the most common isotope.
K-39 isotope has 20 neutrons
Phosphorus-31 is the most common isotope. (Wikipedia)
It is impossible to write in WikiAnswers the correct symbol; as an example vanadium-51, the most known isotope:51 as superscript, 23 as subscript and to right V.
The mass number of the most common titanium isotope is 48.
Ar 40 is the most common isotope, accounting for 99.6% of the total (by weight).
BORON 511 atomic#=5, atomic mass = 11 (for most common isotope)