Energy and particles are the arrows in the diagram represent. Hence, option C is correct.
An element is a pure substance that cannot be broken down by any physical or chemical means into simpler substances.
Radioactive decay is defined as the process where unstable nuclei of an atom lose energy by releasing particles like alpha or beta particles.
Here, He is an alpha particle. This shows that the above radioactive decay has released alpha particles along with the release of energy.
When we show this radioactive decay diagrammatically then arrows are used to depict the release of energy and particles.
Thus, we can conclude that the arrows in the diagram represent energy and particles.
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