During a chemical reaction only ______1________ electrons participate. Metals are _____2______ in nature and they form _____3_____. Inert gases have ___4______ electrons in their outermost shell.Therefore they are chemically ____5_______.
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1 valence
2 electropositive
3 cations
4 eight
5 inert
2 electropositive
3 cations
4 eight
5 inert
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