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All noble gases have completely filled orbitals. Helium has two valence electrons and its s-orbital is full and is stable. Other noble gases have completely fill p-orbitals as the valence orbitals.
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What color does helium burn?
Helium does not burn. It is an extremely stable noble gas. Only in a nuclear reactor can it be made to react.
Is helium an ion?
Yes helium is an atom. It is stable. It is placed in group 18.Yes, helium is a monoatomic molecule. It is stable itself as it has already achieved maximum possible electrons in its outermost shell. It is the only element in group 18 without 8 electrons in valence shell.
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.
Why helium does not form compounds?
Because it has 2 electrons which fill up its electron shell, making it unreactive and stable.
Is helium paramagnetic?
AnswerThere are two variants of helium -- helium 3 and helium 4. Helium 4 is not magnetic but helium 3 is. Its magnetism is, however, of different nature than e.g. that of iron. The magnetism of helium 3 is used for medical lung imaging.
What is the octet rule and what does it have to do with bonding?
Most atoms tend to form the kind of bonds that will give them 8 electrons (an octet) in their outer shell, because that is a particularly stable arrangement. Exceptions are hydrogen and helium. Hydrogen's most stable arrangement is zero electrons (but it can also have 2) and helium has a stable arrangement of 2 electrons. the two lightest metals, lithium and beryllium, also have a stable electron arrangement of just two electrons. All other elements seek 8.
Which is more stable He - 4 or He - 6?
Helium 4 is very stable. Helium 6 is unstable.
What is the half life of helium?
Helium-3 is stable.
Is a Helium a stable?
yes..
How many electrons does it take for hydrogen and helium to become stable?
Helium is already stable. Hydrogen should gain or lose one electron to be stable.
Which is the most stable out of the two Oxygen or Helium?
Helium is more stable, because it has completely filled valence orbitals.
Do Helium Xenon and Neon have stable electron configurations?
Yes. Helium, Xenon, and Neon have stable electron numbers (octette rule).
Is helium a reactive molecule?
No. Helium is not molecular it is monoatomic. Helium is unreactive and forms no compounds.
Can helium turn into air?
Helium cannot turn into anything, it is a stable element.
Is helium unstable and also radioactive?
Helium is extremely stable and non radioactive
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
Is Helium the first element on the periodic table and the most stable element in the universe?
False (Hydrogen has the first position, Helium is the most stable)
