The number depends on what will fill the outer shell. It can be 2 or 8.
Helium is stable with 2 valence electrons. It has a full outer electron shell, making it chemically inert and stable.
its Atomic Mass.
The element with a stable 2 valence electrons is helium. Helium has a full outer electron shell with 2 electrons, making it very stable and unreactive.
Gases with eight valence electrons.
No, sulfur has only 6 valence electrons. Atoms with 8 valence electrons are most stable and generally chemically inert.
In order for an atom to be chemically stable it must have 8 valence electrons.
Two valence electrons make an atom chemically reactive because it wants to either gain or lose electrons to achieve a full valence shell. This makes it more likely to form bonds with other atoms to reach a stable electron configuration.
It depends on the atom. List what element the atom is from.
No. there are no unpaired electrons in xenon. In neutral form, xenon will have 8 valence electrons.
A full outer shell of electrons typically results in chemical stability for an atom. This corresponds to 8 valence electrons for most atoms (except hydrogen and helium, which only need 2 valence electrons for stability).
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.
Yes, a covalent bond involve sharing of electrons between two atoms.