Electron configuration is a term applied to chemical elements not to compounds.
In NaCl, there exists Na+ and Cl- ions and with the electron configuration of [He]2s22p6 (for Na+) and [Ne]3s23p6 (for Cl-)
Sodium has 1 electron to "donate" and chlorine has space to "accept" 1 electron, so this electron transfer occurs and both have a stable octet electron configuration
Sodium chloride has got electron configuration of 2,8,1. Potassium chloride has got electron configuration of 2,8,8,1. They behave identically in almost all the chemical reactions. But then you have potassium chloride molecule inside the cell. You need to have sodium chloride molecules out side the body cell to make them survive. If you get intravenous injection of sodium chloride, nothing will happen to you. If you give intravenous injection of potassium chloride, you will die instantly. How body cells recognize the difference between sodium chloride and potassium chloride in no time is the big question mark.
Sodium is an element which has one electron in its outer electron shell, and which can obtain a more stable electron configuration by getting rid of that electron. This causes it to undergo chemical reactions with other elements such as oxygen or chlorine, which need to acquire electrons in order to obtain a more stable electron configuration. If sodium reacts with water, it is reacting with the oxygen in the water molecule. In the case of sodium chloride, the sodium has already reacted with chlorine to form that compound, and has given up its outer electron, so it no longer needs to react with oxygen in water.
The abbreviated electron configuration of sodium is [Ne]3s1.
Both atoms have separate electron configurations. The electron configuration for Na is: 1s^2 2s^2 2p^6 3s^1 The electron configuration for Cl is: 1s^2 2s^2 2p^6 3s^2 3p^5
neon!
Sodium lost an electron.
When sodium and chloride join together an electron from sodium is transferred to the chloride to form a bond. This bond is called an ionic bond.
Sodium chloride (NaCl) does not react with chlorine. The bond between sodium and chlorine atoms to form sodium chloride is ionic. The sodium ion loses one electron to the chlorine atom, forming a Na+ ion and a Cl- ion. The electrostatic attraction between the two oppositely charged ions forms the ionic bond.
sodium gives one electron to form sodium cation. chlorine accepts one electron to form chloride anion sodium chloride consists of an array or sodium ions and chloride ions
The atomic number of Sodium is 11 (2,8,1), so there is one electron in the outer-most shell. As soon as sodium looses this outer-most one electron, it acquires the stable most structure with a 2,8. That';s why sodium ion is stabler than sodium metal. The electronic configuration of a sodium ion is 2,8. Same thing happens with Chlorine. The electronic configuration of chlorine is 2,8,7. Chlorine needs just one electron to stabilize itself with a configuration of 2,8,8. When the chlorine atom gains one electron, it forms the chlorine ion which has the configuration 2,8,8 which is stable.