Question

what is reactive element​

Answer 1

Answer:

The number of electrons in the outermost shell of an atom determines its reactivity. Noble gases have low reactivity because they have full electron shells. ... Alkali metals are highly reactive because they readily lose the single electron in their outermost shell.

Explanation:

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Answer 2

Answer:

reactive elements are the element which are ready to gain electrons coz they have completely filled outermost shell.