According to the research, the correct option is lithium. It is a moderately abundant light element.
It is an alkaline chemical element, silvery white, metallic, diamagnetic but highly reactive or flammable and potentially explosive once exposed to air and is represented by the chemical symbol Li.
It is an element similar to sodium, which in its pure form is a soft metal, which is not found in a free state in nature, being the lightest metal in the Periodic Table, discovered in 1817.
Therefore, we can conclude that according to the research, the correct option is lithium. It is a moderately abundant light element.
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