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How many extra valence electrons does helium need to become stable?
Wiki User
∙ 11y ago
Helium has 2 valence electrons and has completely filled orbitals / shells and helium is stable.
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoHydrogen has one electron and needs one more electron to be stable. Helium has 2 valence electron (completely filled shells) and is already stable.
Wiki User
∙ 11y agoIn both cases, their outer shell is an s orbital which needs to be filled with only 2 electrons to make a full outer shell making it stable.
Wiki User
∙ 11y agoHelium has two valence electrons, it has completely filled s orbital and has stable electronic configuration. Hence it is chemically inert
Wiki User
∙ 11y agoHelium has 2 valence electrons (maximum for s orbital) and is stable. Hence it will not gain or lose electron.
Wiki User
∙ 11y agoNone. Helium has a full shell 1s2
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How many valence electrons each noble gas has?
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.
Which noble gases does not have 8 electrons in its highest occupied enegry level?
All noble gasses have 8 valence electrons, it is what makes them "stable" and therefore are non reactive.
What is the link between the noble gases and the outer shells?
8 electrons (except for helium which has only 2 valence electrons)
What is the rectivity of the noble gases in terms of valence electrons?
Noble gases are also known as the inert gases, meaning they don't react because they have a stable octet (eight electrons in their valence shell). They all have eight electrons in their valence shell with the exception of helium because helium is rebel, but they are all nonreactive including helium.
How many valence electrons does calcium lose?
Calcium has 2 valence electrons and it typically loses these 2 electrons to achieve a stable configuration.
How many valance electrons does helium have?
Helium has two valence electrons. It is the only noble gas not to have eight valence electrons. Helium has the electronic configuration 1s2.The Noble gases have eight valence electrons in their outer shell.
Valence electrons of helium?
Helium has two valence electrons in the 1s orbital.
How many valence electrons do most elements need to become stable?
8 valence electrons are needed for an element to become stable, which is why the noble gases do not interact with any other elements. They are already stable. However, the exception is Helium, the first noble gas, which only has two valence electrons. 8 valence electrons are needed on the 2nd and 3rd valence shells for any molecule to become stable.
How many valence electrons each noble gas has?
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.
Why is a helium atom stable with only two electrons in its outermost energy level?
helium has completely filled valence orbitals and hence is stable
How many valence electrons do stable atoms have?
A stable atom has 8 electrons in its outer most valence shell. A simple way to remember this is that all atoms want to be like the noble gases which all have 8 electrons (except helium but the reason is complicated and not necessary here)
Which noble gases does not have 8 electrons in its highest occupied enegry level?
All noble gasses have 8 valence electrons, it is what makes them "stable" and therefore are non reactive.
How many valence electrons does helium need to have filled outermost energy level?
helium has 2 valence electrons (in s orbital) and has complete s orbital. So it does not need to gain or lose more electrons to be stable.
How does a atom become stable?
When the atom has 8 valence electrons.
What is the link between the noble gases and the outer shells?
8 electrons (except for helium which has only 2 valence electrons)
What is the purpose of elements to lose or gain valence electrons to become an ion?
they want to become stable by having all of the valence filled they want to become stable by having all of the valence filled
What is the rectivity of the noble gases in terms of valence electrons?
Noble gases are also known as the inert gases, meaning they don't react because they have a stable octet (eight electrons in their valence shell). They all have eight electrons in their valence shell with the exception of helium because helium is rebel, but they are all nonreactive including helium.
