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A helium nucleus - more precisely, a helium-4 nucleus - is called an alpha particle. The corresponding decay would be called alpha decay.

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What radioactive particle is the size of a helium nucleus?

alpha particle


An alpha particle has the same structure as which nucleus?

The radioactive alpha particle has the same structure as the atomic nucleus of helium. They are usually formed and emitted during alpha decay.


What has two protons and two neutrons and is identical to a helium nucleus?

An alpha particle, one of the possible emissions in radioactive decay.


Does beta have a helium nucleus?

No, beta particles consist of high-energy electrons or positrons that are emitted in certain types of radioactive decay. Helium nuclei have two protons and two neutrons and are called alpha particles.


What is another name for beta particle?

Another name for a beta particle is an electron. It is a high-energy, high-speed particle that is emitted during the radioactive decay of certain elements.


Is helium unstable and also radioactive?

Helium is extremely stable and non radioactive


Does alpha decay produce helium atoms?

No, alpha decay does not directly produce helium atoms. Alpha decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle, which consists of two protons and two neutrons. This alpha particle is the same as a helium-4 nucleus, but it is not considered a helium atom until it captures electrons and becomes electrically neutral.


Which particle is emitted from a hydrogen-3 nucleus when it undergoes radioactive decay?

When a hydrogen-3 nucleus undergoes radioactive decay, it emits a beta particle (specifically an electron) and an anti-neutrino to transform into helium-3.


What type of nuclear reaction results in a single nucleus undergoing a decrease in atomic number and the release of a helium nucleus?

The nuclear reaction that results in a single nucleus undergoing a decrease in atomic number and the release of a helium nucleus is called alpha decay. In this process, an unstable nucleus emits an alpha particle (helium nucleus) which consists of two protons and two neutrons, causing the original nucleus to decrease in atomic number by 2.


What are the 3 radioactive emissions of the nucleus decay?

alpha, fully ionized helium-4 nucleusbeta, electron w/ neutrinogamma, photon


What happens to a radioactive nucleus when it emits alpha particle and What happens to a radioactive nucleus when it emits alpha particle?

When a radioactive nucleus emits an alpha particle, it decreases by two protons and two neutrons. This results in a new nucleus with a lower atomic number by 2 and lower mass number by 4. The emitted alpha particle is a helium nucleus (2 protons and 2 neutrons) and carries a positive charge.


Which type of nuclear substance is a helium nucleus?

The alpha particle has a composition identical to a helium nucleus, specifically, the nucleus of helium-4. The alpha particle, however, is a product of radioactive decay, and is usually moving pretty fast. When we speak of helium nuclei, we are usually speaking of things that are much less energetic.