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anzhelika [568]
2 years ago
10

The atoms of most elements are reactive. Describe atoms that are

Chemistry
1 answer:
masya89 [10]2 years ago
7 0
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. Halogens are highly reactive because they readily gain an electron to fill their outermost shell
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