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)
Noble gases have a very stable structure, the outer shell of electrons is full.
they must gain one more electron in order to have noble gas electron configuration
As it is in group six and therefore nearer to the Noble Gases it gains.
As a general rule, the noble gases do not lose or gain valence electrons because in most reactions they are considered inert.
Sulfur will gain 2 electrons
It has 7 valence electrons, so needs 1 more to become noble.
loses 2 electrons to achieve a noble gas configuration
to gain or lose electrons to become stable
Noble gases have a very stable structure, the outer shell of electrons is full.
they must gain one more electron in order to have noble gas electron configuration
it should gain 3 electrons
As it is in group six and therefore nearer to the Noble Gases it gains.
Halogens are in the seventh group on the periodic table, and thus have seven electrons in their outer shell. In order to attain a noble gas configuration, it must gain an electron to form an octet, which is when eight electrons are in the outer shell.
Noble gases
As a general rule, the noble gases do not lose or gain valence electrons because in most reactions they are considered inert.
Atoms gain, lose or share electrons and try to attain noble gas configuration.
nitrogen has 5 valence electrons. It should gain 3 electrons to achieve a noble gas configuration.