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 4s1
Wikipedia 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]
The electronic configuration for sodium is: 1s2 2s2 2p6 3s1
The electronic configuration for sodium, using noble gas (abbreviated) notation is, [Ne] 3s1.
Long way: 1s2 2s2 2p6 3s1
Short way: [Ne] 3s1
Electron configuration is term used for chemical elements.
1s22s22p6
[Na + ] 1s2 2s2 2p6
2,8,1
[Ne]3s1
[Ne]3s1
In NaF, there exists Na+ and F- ions and with the electron configuration of [He]2s22p6 (for Na+) and [He]2s22p6 (for F-)
The noble gas electron configuration of radon is [Xe]4f145d106s26p6.
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 electron configuration and noble gas core for Li+ is that of He: Li+: (1s2, 2s0)
Calcium loses two electrons to obtain a noble-gas electron configuration.
The "Noble gas electron configuration," or the condensed electron configuration, for F is [He] 2s2 3p5.
Sodium can lose its one valence electron to form noble gas configuration. Chlorine will accept one electron to form noble gas configuration. Hence a ionic bond will e formed between sodium and chlorine.
In NaF, there exists Na+ and F- ions and with the electron configuration of [He]2s22p6 (for Na+) and [He]2s22p6 (for F-)
Definition: A noble gas core is an abbreviation in an atom's electron configuration where the previous noble gas's electron configuration is replaced with the noble gas's element symbol in brackets. ... This is the noble gas core notation of sodium.
In NaCl, there exists Na+ and Cl- ions and with the electron configuration of [He]2s22p6 (for Na+) and [Ne]3s23p6 (for Cl-)
Atoms of the element sodium (atomic number 11) have the electron configuration 1s22s22p63s1 with the noble gas form [Ne] 3s1
Noble Gas
The noble gas electron configuration of radon is [Xe]4f145d106s26p6.
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.
Losing an electron cesium has a noble gas configuration.
The electron configuration and noble gas core for Li+ is that of He: Li+: (1s2, 2s0)
The noble gas electron configuration of Phosphorus is [Ne] 3s2 3p3