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Both groups are nonmetals. All of Group 8 and all but one element in Group 7 are gases under ordinary conditions. However, their chemical behavior is very different. The atoms of halogens easily gain one electron, making them extremely reactive. The noble gases do not ordinarily gain, lose, or share electrons, making them chemically unreactive.

Well, noble gases are gases in which really DON'T like to share electrons.

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11y ago
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11y ago

All noble gases have completely filled valence orbitals and hence are generally chemically inert.

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13y ago

All the noble gases have their orbits filled (electrons in everyone) making them very low reactive substances.

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11y ago

They all have completely filled orbitals and hence hare chemically inert

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11y ago

All members of the noble gas family have completely filled valence orbitals and are generally stable and chemically inert under normal conditions.

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10y ago

they have 8 valence electrons, except for helium which has only 2.

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12y ago

They are unreactive

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Q: What are the similarities of noble gases?
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