How would Mg change to gain a noble gas structure?
Ions are formed when elements gain or lose electrons.
False; it reacts so that they acquire the electron structure of a noble gas.
A nitrogen atom needs to gain three electrons to achieve a stable electron configuration similar to a noble gas. This would result in the nitrogen atom having a full outer electron shell, like that of a noble gas.
Oxygen, O ,and selenium Se. O (oxygen) would have to gain two electrons in order to achieve the same number of electrons as Ne (neon, a noble gas). Selenium would gain two to achieve the same number of electrons as Kr, krypton (noble gas). They would form the oxide, O2- and selenide Se2- ions
Noble gases
A sulfur atom will gain 2 electrons to achieve a noble gas structure because sulfur is in group 16 of the periodic table and needs to fill its outer shell with a total of 8 electrons to become stable.
Atoms will gain, lose, or share electrons to match the number of outer shell electrons of a noble gas.
Ions are formed when elements gain or lose electrons.
False; it reacts so that they acquire the electron structure of a noble gas.
A nitrogen atom needs to gain three electrons to achieve a stable electron configuration similar to a noble gas. This would result in the nitrogen atom having a full outer electron shell, like that of a noble gas.
Nitrogen needs to gain 3 electrons to achieve noble gas electron configuration, similar to the nearest noble gas, which is neon. By gaining 3 electrons, nitrogen would have a full outer shell of 8 electrons, making it more stable.
Oxygen, O ,and selenium Se. O (oxygen) would have to gain two electrons in order to achieve the same number of electrons as Ne (neon, a noble gas). Selenium would gain two to achieve the same number of electrons as Kr, krypton (noble gas). They would form the oxide, O2- and selenide Se2- ions
There are three different ways for this. Elements can either gain electrons or lose electrons or share electrons and attain a stable noble gas electronic configuration.
Noble gases
A bromine atom (Br) needs to gain one electron to achieve a full outer shell of electrons like a noble gas. This would give it the electron configuration of the noble gas krypton (Kr).
Halogens have 7 valence electrons, in order to become a noble gas you need 8 so instead of losing electrons, it would be easier just to gain 1. That would make Halogens a negative 1 If you do the dot structure you can see that there is only room to gain 1 electron when forming a bond.
it should gain 3 electrons