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Helium has two valence electrons
there are 8 electrons in the valence shell of neon
there are 8 electrons in the valence shell of neon
The entire Group 2A has 2 valence electrons; this includes sodium and calcium.
The word "valance" is used to describe electrons in the outer-most energy level of an atom. Oxygen has six valance electrons.
to fil the outermost energy level which is the level that contain all the valance electrons
They have different numbers of valance electrons
If you are talking about the valance electrons any elements in group 5 on the periodic table will have 5 valance electrons.
alkaline earth metals
8 valance electron
It's valance shell does not contain an octet of eight valance electrons. That simple.
Halogens are group 17 elements. They have 7 valence electrons.
They have different numbers of valance electrons
there are 8 electrons in the valence shell of neon
Helium has two valence electrons
Classic answer is to "satisfy" a full valance ring of electrons.
16.546 valence electrons are located in all rare earth elements.