Since sodium is a first column it has one valance electron, as well since it is a third row it has 3 rows of electrons. There can be no more electron in each tiered row of electrons than the row it matches on the Periodic Table so the 2nd row of electrons has eight electrons because the 2nd row of the periodic table has eight elements. there are two elements in the first row of the periodic table so there are two in the first row around the sodium nucleus. That is one on the outer, eight in the middle, and two on the inner.
In NaF, there exists Na+ and F- ions and with the electron configuration of [He]2s22p6 (for Na+) and [He]2s22p6 (for F-)
The electron configuration of sodium is 1s2 2s2 2p6 3s1. It has three principal energy levels. It has only one valence electron.
Argon has completely filled valence orbitals and hence is unreactive. Sodium has one valence electron. If sodium loses this electron it will attain the stable electron configuration of the nearest noble gas (argon) and hence is reactive.
The noble gas (electron) configuration is a scheme for writing the electron configurations of elements in a kind of "shorthand" so it is easier to write them. For potassium element - not ion , [Ar] 4s1 is the way it is written in noble gas configuration. If we could not use this shorthand and had to write out the electron configuration completely, it would like this:1s2 2s2 2p6 3s2 3p6 4s1Wikipedia has other information on potassium, and a link is provided.For Sodium it is [Ne]3s1 and thus for sodium ion it is just [Ne]
Every halogen has the capacity to accept one electron from a sodium atom and to thereby achieve a noble gas electron configuration of eight valance electrons. The halogens are fluorine, chlorine, bromine, iodine, and astatine.
The abbreviated electron configuration of sodium is [Ne]3s1.
neon!
Electron configuration is a term applied to chemical elements not to compounds.
Na+ is the formula of the ion formed when sodium achieves a stable electron configuration.
The most likely electron configuration for a sodium ion in its ground state is 1s22s22p63s1.
Sodium fluoride has electron and ionic elements. This is taught in science.
The electronic configuration for the sodium ion, Na+ is 1s2 2s2 2p6 or [Ne]
fluoride
[Ar] 3s1
This is the electron on the external shell.
A neutral sodium must lose one electron in order for the resulting sodium ion to have the same electron configuration as an atom of the element neon.
the abbreviated electron configuration of sodium is (Ne) 3s1