An octet of electrons is when the outermost electron shell of an atom contains eight electrons.
Phosphorus need 3 electrons to complete its octet.
2 or more electrons, because Oxygen already has 8.
It is necessary to gain/lose electrons.
This atom must gain 3 electrons to achieve an octet.
Carbon does not gain or lose 4 electrons to complete its octet because it only has 4 valence electrons to begin with. To complete its octet, carbon forms covalent bonds by sharing electrons with other atoms to achieve stability due to its electronic configuration.
Phosphorus need 3 electrons to complete its octet.
Oxygen needs to gain 2 electrons to reach an octet, as it has 6 valence electrons in its outer shell and requires a total of 8 electrons to have a stable octet configuration.
8: that's the meaning of "octet".
Neither. It has a stable octet in its ground state.
Fluorine needs one more electron to have a stable octet, as it has 7 valence electrons and stable octet configuration is achieved with 8 electrons.
Silicon, like carbon, has four valance electrons, and needs another four to have a stable octet.
No, carbon cannot expand its octet beyond four valence electrons.
2 or more electrons, because Oxygen already has 8.
No, metals tend to lose electrons to achieve a full octet.
8 valence electrons
An atom of selenium will gain two electrons to achieve an octet because it has six valence electrons in its outer shell. By gaining these two electrons, selenium will have a total of eight electrons in its outer shell, fulfilling the octet rule.
Octet Rule: In order for atoms to become more stable, they will take electrons, lose electrons, or share electrons so that their outer shell/level will contain eight electrons and be complete.