Sulfur will gain 2 electrons
The charge of a sulfur anion is typically 2-. It gains two electrons to achieve a stable electron configuration similar to that of a noble gas.
As it is in group six and therefore nearer to the Noble Gases it gains.
Barium has 2 electrons in its outer shell. In order to achieve a noble gas electron configuration it needs to lose these 2 electrons. This will leave it with the same electron configuration as Xenon, a noble gas.
Two, to raise the outer shell total to eight electrons, like that of the next heavier noble gas.
A calcium atom must lose two electrons to achieve noble gas configuration by having a full valence shell of electrons, similar to the nearest noble gas, Argon. This can be achieved through the formation of a Ca2+ ion.
Sulfur gains two electrons to achieve a stable noble gas electron configuration of argon. Sulfur has 16 electrons in its neutral state, and by gaining two electrons, it attains a full valence shell with eight electrons, similar to the nearest noble gas, argon.
The charge of a sulfur anion is typically 2-. It gains two electrons to achieve a stable electron configuration similar to that of a noble gas.
Sulfur has six valence electrons and is in group 16 of the periodic table. To achieve a stable noble gas configuration, it needs to lose two electrons, resulting in a positive charge of +2, similar to the electron configuration of neon. This loss allows sulfur to attain a full outer shell, characteristic of noble gases.
As it is in group six and therefore nearer to the Noble Gases it gains.
It must lose two electrons.
Sulfur atoms will gain two electrons in order to achieve a noble gas electron configuration. A sulfide ion has the formula S2-.
Barium has 2 electrons in its outer shell. In order to achieve a noble gas electron configuration it needs to lose these 2 electrons. This will leave it with the same electron configuration as Xenon, a noble gas.
A calcium atom must lose 2 electrons to achieve a noble gas structure, as it will then have the same electron configuration as argon, a noble gas. This loss of electrons allows the calcium atom to have a full outermost electron shell, giving it greater stability.
Oxygen should gain 2 electrons to achieve noble gas configuration
A non-metal element can achieve a stable electron-shell structure like that of noble gases by gaining or losing electrons to complete its outer electron shell. This can be done through forming ions or sharing electrons with other atoms to attain a full valence shell, which is similar to the configuration of noble gases.
Phosphorus has to gain a total of 3 electrons to achieve a noble gas configuration. You can find this for any non-metal because the last digit of its group number is the number of valence electrons it has. For example Phosphorus has 5 and Sulfur has 6. In order to achieve a noble gas electron configuration, you must have 8 valence electrons, so phosphorus must gain 3.
Two, to raise the outer shell total to eight electrons, like that of the next heavier noble gas.