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The goal of every element is to complete its outer shell of electrons through reacting with other elements. And atom's outer shell can hold up to eight electrons. The elements of group 8 already have 8 electrons, so they have no reason to react with other elements. Because they don't react they're called noble gasses.

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12y ago
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9y ago

It comprises of inert elements.They are non-reactive.

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14y ago

8A: Groups 1A-8A are the representative elements. 8A elements are Noble gases. They're electron shells are full and they are extremely stable. THey do not need to gain or loose electrons.

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14y ago

because the electrons form a perfect shell around the neutrons and protons

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12y ago

they are known as the noble gases and have full valence shells, therefore, they dont need to bond with any other elements; they are stable.

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14y ago

No unreactive elements, but osmium is not so reactive.

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Q: Why are members of group 18 unreactive?
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