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Noble gases are present in group 18 on the modern periodic table. Noble gases have completely filled orbitals / energy levels. They generally have 8 valence electrons (helium has only 2) and have stable electronic configuration. Hence they are chemically inert and generally donot form compounds under normal conditions.

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11y ago
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11y ago

Noble gases are not reactive. It was long believed that they could not form compounds. However since 1962 compounds of Ar, Kr, Xe and radon have been prepared. These are not stable.

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8y ago

They do not combine easily with other elements.

Novanet/Gradpoint answer: Low reactivity

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16y ago

They are all highly unreactive!

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Q: Which property is common to noble gases brightly colored strong odor low reactivity high reactivity?
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