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some isotopes release an alpha particle during nuclear disintegration; an alpha particle consists of 2 protons and 2 neutrons (equivalent to an atom of helium). others release a beta particle, which is an electron,or negatively charged nuclear particle.
some isotopes release an alpha particle during nuclear disintegration; an alpha particle consists of 2 protons and 2 neutrons (equivalent to an atom of helium). others release a beta particle, which is an electron,or negatively charged nuclear particle.
Answer:
The correct answer is helium 4.
Explanation:
A positively charged particle, which comprises two protons and two neutrons is called an alpha particle. There is a similarity between the alpha particle and a helium atom as helium atom also possess mass number, that is, no of protons plus no of neutrons as 4, and atomic number, that is, number of protons a 2.
Therefore, it can be said that an alpha particle is also considered as a nucleus of helium isotope.
