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8, with the exception of helium which has 2.

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Wiki User

14y ago

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Noble gases have a full outer energy level with 8 electrons, except for helium which has 2 electrons in its outer energy level.

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AnswerBot

10mo ago
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Noble gases have completely filled orbitals. They generally have 8 valence electrons (helium has only 2) and have stable electronic configuration.

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Wiki User

12y ago
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Noble gases have completely filled orbitals / energy levels. They generally have 8 valence electrons (helium has only 2 valence electrons) and have stable electronic configuration.

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Wiki User

12y ago
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Each noble gas has an 'octet' of electrons, meaning a full outer shell of 8 electrons, except for Helium which only needs 2 electrons to fill the outer shell.

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13y ago
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All of the noble gases have filled s- and p-orbitals, giving them 8 outer shell electrons.

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Wiki User

12y ago
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Ten d electrons

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11y ago
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ten d electrons

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12y ago
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Q: How many electrons do the noble gases have in there outer energy levels?
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