Question

Scandium, 44 is over 21sc, decays by emitting a positron. what is the nuclide that is the product of the decay? group of answer choices

Answer 1

Emitting a positron (e+) means the atomic number of product nuclei decreased by one, with the same mass number.

Atomic number 20 is of Calcium, so $44Ca_{21-1}$.

So, 44Ca₂₂

What is nuclear decay?

The process through which an unstable atomic nucleus loses energy through radiation is known as radioactive decay, also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration. A substance that has unstable nuclei is regarded as radioactive. Alpha decay, beta decay, and gamma decay are three of the most frequent kinds of decay, and they all entail the emission of one or more particles. Beta decay is governed by the weak force, whereas the nuclear force and electromagnetism are in charge of the other two. Electron capture is a fourth type of common decay in which an unstable nucleus seizes an inner electron from one of the electron shells.

Discrete X-rays are released from the transitions as a result of the loss of that electron from the shell, which causes a cascade of other electrons to fall into the lower shell. Iodine-125, which is frequently utilized in medical contexts, is an example.

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