How an atom reacts chemically depends on how willing it is to share: electrons with other chemical elements.
An atom refers to the smallest, indivisible unit made up of matter and forms all chemical elements.
Hence, atoms are the fundamental building blocks of matter and they determine the structure of all chemical elements.
In Chemistry, an atom is made up of three (3) distinct subatomic particles and these include;
Chemical reactivity determines how readily a chemical element bonds with other chemical elements by sharing its electrons with them.
As a general rule, how an atom reacts chemically is highly (largely) dependent on the number of valence electrons in the outermost shell of its atom.
In conclusion, the willingness of an atom to share electrons determines how it reacts chemically with others.
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