answersLogoWhite

0

Helium has 2 electrons in its last (and only) shell. All other noble gases have 8 electrons in its valence shell.

User Avatar

Wiki User

11y ago

What else can I help you with?

Related Questions

How many electron does potassium have to gain or loose in order to achieve a noble gas electron configuration?

Potassium has one electron in its outer shell. It will lose this electron to achieve the noble gas electron configuration of argon in its previous full shell.


How many electrons does Xenon have in its outer electron shell?

Xenon has 8 electrons in its outermost electron shell, making it a stable noble gas.


How many electron shielding layers do noble gasses have?

Noble gases have 8 electron shielding layers. This is because noble gases have a full outer electron shell, so they have filled all available energy levels up to the 8th shell, leading to 8 electron shielding layers.


How many electrons does chlorine gain to make a noble gas?

Chlorine gains 1 electron to achieve the noble gas electron configuration of argon.


How many electrons does potassium need to loss to get a full outer shell?

Potassium needs to lose 1 electron to achieve a full outer shell, as it has 1 electron in its outermost shell. By losing this electron, potassium can achieve the stable electron configuration of the nearest noble gas, argon.


How many electrons does chlorine need to be a noble gas?

Chlorine need one extra negatively charged electron to be a noble gas.


How many electrons are there in the third noble gas shell of sodium atom Na atomic number 11?

The sodium atom (Na) has 11 electrons. The electron configuration of sodium is 2-8-1. The third noble gas shell is the second energy level or shell, which can hold a maximum of 8 electrons. Therefore, the number of electrons in the third noble gas shell of sodium is 1.


How many electrons are present in an inert element or noble gases like neon?

Neon and other noble gases have a full outer electron shell, so they have 8 electrons (except helium, which has 2) due to their stable electron configuration. This full outer shell makes them highly stable and unreactive.


How many more electrons does chloride need in order to have a noble gas configuration?

chlorine would need only one electron to attain an octet structure.


How many electrons must an iodide ion lose to achieve a noble gas electron structure?

It should actually obtain an electron in order to fill its outer shell.


How many outer shell electron does krypton have?

Krypton has eight outer shell electrons. It is a noble gas with the electron configuration of [Ar] 3d¹⁰ 4s² 4p⁶, indicating that its outermost shell (the fourth shell) is fully occupied with eight electrons. This full valence shell contributes to krypton's chemical inertness.


How many electrons do halogens have to lose or gain to achieve a stable noble gas electron configuration?

They have to gain 1 electron. Halogens have 7 electrons in their valence shell and noble gasses have 8.