it should gain 3 electrons
nitrogen has 5 valence electrons. It should gain 3 electrons to achieve a noble gas configuration.
Calcium will lose two electrons to gain the noble gas configuration of Argon.
nitrogen should give 5 electrons (or better gain 3 electrons) to attain noble gas configuration.
4 but it will need energy, so carbon gain 4 electrons to achieve a noble gas configuration.
Nitrogen has to gain three electrons
An atom of silicon needs to gain 4 electrons in its 3p sublevel to attain the noble gas electron configuration of argon, the noble gas in period 3 of the periodic table.
Selenium should gain two electrons and lose six electrons to achieve a noble gas electron configuration.
Oxygen should gain 2 electrons to achieve noble gas configuration
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.
Carbon needs to gain four electrons in order to obtain a noble gas electron configuration, similar to that of neon. This will result in a full valence shell with eight electrons, fulfilling the octet rule.
They have to gain 1 electron. Halogens have 7 electrons in their valence shell and noble gasses have 8.
Calcium loses two electrons to obtain a noble-gas electron configuration.