Which type of radiation particle, emitted from a nuclear reaction, is most similar to a helium nucleus?

alpha

beta

gamma

isotope

The correct answer is alpha radiation.

Explanation:

For the given options:

Option 1: Alpha

Alpha decay is defined as the process in which alpha particle is emitted. In this process, a heavier nuclei decays into a lighter nuclei. The alpha particle released carries a charge of +2 units. The released alpha particle is also known as helium nucleus.

Option 2: Beta

Beta decay is defined as the process in which beta particle is emitted. In this process, a neutron gets converted to a proton and an electron.  The released beta particle is also known as electron.

Option 3: Gamma

Gamma decay is defined as the process in which an unstable nuclei gives off excess energy by a spontaneous electromagnetic process and thus releases . These radiations does not carry any charge and are electrically neutral.

Option 4: Isotope

Isotope is defined as the chemical specie which belong to the same element but differ in their molecular mass.

Hence, the correct answer is alpha radiation.

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