The branch of science concerning heat flow and energy conversions is called chemistry thermodynamics conversion science atomic studies

The branch of science concerning heat flow and energy conversions is called thermodynamics. The pattern that takes place in the ecosystem regarding the flow of energy is from a higher energy state t a lower energy state. It follows the second law of thermodynamics, the entropy in which all things go into the chaotic state from a higher form into lower form.

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explanation:

the atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons.