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It will vary depending on the noble gas.

helium has 2, neon has 10, argon has 18, krypton has 36, xenon has 54, radon has 86.

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11y ago
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AnswerBot

6mo ago

A noble gas typically has 8 electrons, except for helium which has 2 electrons. They have a full outer electron shell, making them stable and unreactive.

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11y ago

A noble gas generally has 8 valence electrons. But helium has only 2

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13y ago

Noble Gasses will not form ions because they already have full shells of electrons, so the proton to electron ratio is 1:1.

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Anonymous

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4y ago

iron

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Q: How many electrons does a noble gas have?
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Related questions

How many electrons does O need to achieve noble gas?

Oxygen needs to gain 2 electrons to achieve a stable octet, like a noble gas.


How many electrons must be gained or lost for Mg to attain a noble gas?

Mg must lose 2 electrons to attain the electron configuration of a noble gas (in this case, Neon).


How many electrons must Kr lose to attain a noble gas electron configuration?

Krypton is a noble gas and need not lose electrons. It is already stable.


What element is a noble gas and has 36 electrons?

Krypton is a noble gas with 36 electrons.


How many electrons must be gained or lost by each element to achieve a noble gas configuration of electrons for oxygen?

Oxygen needs to gain 2 electrons to achieve a noble gas configuration, as it has 6 valence electrons and wants a full valence shell of 8 electrons, like a noble gas.


How many valence electrons are in the noble gas neon?

8.


How many electrons does strontium have to give up achieving a noble gas electron configuration?

Strontium has 38 electrons. It needs to give up 2 electrons to achieve a noble gas electron configuration, similar to the nearest noble gas, which in this case is krypton (36 electrons).


Does a noble gas have twice as many electrons as protons?

equal numbers of protons and electrons


How many electrons does As to gain noble gas configuration?

it should gain 3 electrons


How many electrons will a calcium atom Ca lose in order to get a noble gas configuration?

Calcium will lose two electrons to gain the noble gas configuration of Argon.


How many electrons does N need to be noble gas?

An atom of nitrogen needs 3 more electrons to achieve a stable, noble gas electron configuration. This would give nitrogen a total of 8 valence electrons, making it isoelectronic with a noble gas (in this case, neon).


How many electrons does I have to gain to become noble gas?

It has 7 valence electrons, so needs 1 more to become noble.