Answer: This might be helpful because t is a good basis for organizing elements because each element has a unique number of protons and atomic mass is an indirect way of organizing elements by number of protons.
By the process of absorption.
Explanation:
Molecules move away by absorption of light. This causes a molecule to rearrange its structure in such a way that atoms are lost and it becomes another chemical species. One biologically important photorearrangement reaction is the conversion of 7-dehydrocholesterol to vitamin D in the skin.
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<em>Benjemin</em>