An atom that has been present in the little finger and has been in its present form since the beginning of the universe is the element calcium.
The human body, just like every other thing in the universe is composed of atoms. An atom is the smallest particle of a substance that can take part in a chemical reaction.
An atom that has been present in the little finger and has been in its present form since the beginning of the universe is the element calcium. Calcium is found in abundance in human extremities.
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