it should gain one electron
Atoms can achieve a stable outer electron arrangement by gaining, losing or sharing valence electrons with other atoms or ions.
It should loose 2 electrons to become a noble gas.
They achieve noble gas configuration by the sharing of electrons.
Se has to gain two electrons
1 electron
Atoms can achieve a stable outer electron arrangement by gaining, losing or sharing valence electrons with other atoms or ions.
It should loose 2 electrons to become a noble gas.
They achieve noble gas configuration by the sharing of electrons.
Se has to gain two electrons
a noble gas
As all chemical elements atoms noble gases contain protons, neutrons and electrons.
1 electron
two electrons lost
Atoms lose or gain or share electrons and tend to attain noble gas configuration
Atoms gain, lose or share electrons and try to attain noble gas configuration.
Selenium should gain two electrons and lose six electrons to achieve a noble gas electron configuration.
noble gases