In NaCl, there exists Na+ and Cl- ions and with the electron configuration of [He]2s22p6 (for Na+) and [Ne]3s23p6 (for Cl-)
That is correct. A noble gas (or at least all the noble gas elements heavier than helium) has an electron configuration of 8 electrons in its outer shell, and the sodium and chlorine ions in sodium chloride also have 8 electrons in their outer shell, just like a noble gas atom.
The noble gas configuration of sodium is [Ne]3s^1. This means that it has the same electron configuration as neon except for one additional electron in the 3s orbital. Sodium typically loses this electron to achieve a stable octet configuration.
The ion formed when sodium achieves a noble-gas electronic configuration is Na+. This means that sodium has lost one electron to achieve the same electron configuration as neon, a noble gas, which has a stable electron configuration.
A noble gas electron configuration involves representing an element's electron configuration by using the electron configuration of the nearest noble gas preceding it in the periodic table, followed by the remaining electron configuration for that element. For example, the noble gas electron configuration for sodium (Na) is [Ne] 3s¹, where [Ne] represents the electron configuration of neon leading up to sodium.
The noble gas electron configuration of sodium fluoride is [Ne]3s^1 3p^5. This means that it has the same electron configuration as neon, with an additional 3s^1 electron from sodium and a 3p^5 electron from fluorine.
chlorine would need only one electron to attain an octet structure.
When sodium and chlorine form an ionic bond, sodium loses an electron to achieve the electron configuration of neon (2,8), while chlorine gains an electron to achieve the electron configuration of argon (2,8,8). This results in the formation of a sodium ion (Na+) and a chloride ion (Cl-) which are attracted to each other by electrostatic forces to form an ionic bond.
No, chlorine (Cl) does not have a noble gas electronic configuration. It has the electron configuration [Ne]3s^2 3p^5, which is one electron away from achieving a stable, noble gas configuration like argon (Ar).
No, the electron configuration for an ion is not always the same as that of its nearest noble gas. When an atom loses or gains electrons to form an ion, its electron configuration changes. For example, a sodium ion (Na⁺) has the electron configuration of [Ne], which is the same as neon, but a chloride ion (Cl⁻) also has the same configuration as argon ([Ar]). Thus, while some ions can have configurations similar to noble gases, this is not universally true for all ions.
Chlorine will have a noble gas configuration by accepting one electron from a sodium atom to form an ionic bond. This results in chlorine gaining a full outer electron shell, similar to the noble gas configuration of argon.
Na+ = 1s2, 2s22p6, 3s0which is 2, 8, 0 of Neon
The stable electron arrangement of sodium after the 3s sublevel electrons have been removed is the noble gas configuration of neon. Sodium loses one electron to achieve a full outer shell, similar to the electron configuration of the nearest noble gas element.