Let n = any number greater than 1
ns2np6
Such as 3s23p6
Sodium is not considered chemically stable because it is highly reactive. It readily forms compounds with other elements, particularly halogens like chlorine, to achieve a more stable electron configuration. Sodium is stored under oil or in a dry environment to prevent its reactivity with air and moisture.
A stable electron configuration for a chlorine ion can be achieved by gaining one electron. This would give the chlorine ion a full outer shell of electrons. The symbol for a stable chlorine ion with an extra electron would be Cl-.
Fluorine, oxygen, chlorine.
Fluorine will gain one electron to achieve a full outer shell of electrons, following the octet rule. This makes fluorine stable by attaining a configuration similar to the noble gas neon.
Noble gases have a complete octet and are stable because they have a full outer electron shell. They do not chemically bond with other atoms because they are already in a stable configuration.
In order for an atom to be chemically stable it must have 8 valence electrons.
Cl-1.
Sodium is not considered chemically stable because it is highly reactive. It readily forms compounds with other elements, particularly halogens like chlorine, to achieve a more stable electron configuration. Sodium is stored under oil or in a dry environment to prevent its reactivity with air and moisture.
when chlorine gains an electron, it now now contains a full octet. this means that the chlorine element is now chemically perfect and now is stable , but not as stable as one of the Noble Gases
The noble gas configuration for fermium (Fm) is [Rn] 5f12 7s2. It represents the electron configuration of fermium in a stable state, where it mimics the electron arrangement of the noble gas radon (Rn) to achieve a more stable configuration.
Helium has completely filled orbitals and is hence chemically inert.
Noble gases have a stable electron configuration with a full outer shell, making them very unreactive or inert. This property means they rarely form chemical bonds with other elements.
It is because they are chemically stable.
The noble gas configuration of sulfur is [Ne]3s2 3p4. It represents the electron configuration of sulfur when it has achieved a stable electronic configuration similar to the nearest noble gas, neon.
Both atoms usually attain the stable highest energy level configuration of a noble gas. This occurs through the sharing, gaining, or losing of electrons to achieve a full outer electron shell, which is the most stable configuration.
Noble gases have completely filled outer most shell and have stable electronic configuration. They are chemically inert and exist as monoatomic species.
A stable electron configuration for a chlorine ion can be achieved by gaining one electron. This would give the chlorine ion a full outer shell of electrons. The symbol for a stable chlorine ion with an extra electron would be Cl-.