they must gain one more electron in order to have noble gas electron configuration
They should gain 2 electrons to attain noble gas electronic configuration. (it doesn't become a noble gas as the number of protons are not same)
Phosphorus needs to gain three electrons to achieve a stable electron configuration.
Barium loses 2 as it is in group 2 and it's easier to lose two than to gain more than this.
Sulfur needs to gain 2 electrons to have the electon configuration of Argon
Atoms of group 16 elements are more likely to gain electrons because they have 6 valence electrons and need 2 more to achieve a stable octet configuration, which is typically done by gaining electrons rather than losing them.
They should gain 2 electrons to attain noble gas electronic configuration. (it doesn't become a noble gas as the number of protons are not same)
Phosphorus needs to gain three electrons to achieve a stable electron configuration.
Barium loses 2 as it is in group 2 and it's easier to lose two than to gain more than this.
In a reaction u need two valence electrons to gain or share two valence electrons.
They need to gain them.
Sulfur needs to gain 2 electrons to have the electon configuration of Argon
It needs to lose, or gain, electrons.
Atoms of group 16 elements are more likely to gain electrons because they have 6 valence electrons and need 2 more to achieve a stable octet configuration, which is typically done by gaining electrons rather than losing them.
electrons
The most reactive elements require to lose or gain the least number electron(s) to attain a noble gas structure. These are elements in group one as they need to lose one electron, and elements in group seven as they need to gain one electron.
Oxygen should gain 2 electrons to achieve noble gas configuration
Selenium needs to gain two electrons to achieve a stable electron configuration. By gaining two electrons, selenium will have a complete outer energy level (valence shell), which is the most stable configuration for an atom.