Sodium would LOSE 1 electron to satisfy the octet rule.
The octet rule.
O2
In a covalent bond the electrons are shared between the elements to form an octet. However, in an ionic bond the metal gives up its electron in order to have a perfect octet and the nonmetal takes the electron in order to have a perfect octet.
gain 2 electrons
look for it on the chemistry book, and don't be lazy!Covalent bonding is all about "sharing electrons" so the two elements share electrons (which forms a covalent bond) in order to complete or help complete their octet.
Atoms are not sentient. They undergo chemical bonding and chemical reactions in order to have lower energy, which makes them stable. Typically this means either sharing electrons to get an octet of electrons, or transferring electrons so they get an octet of electrons. This is not a conscious decision on their part.
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.
Silicon, like carbon, has four valance electrons, and needs another four to have a stable octet.
This atom must gain 3 electrons to achieve an octet.
O2
gain 2 electrons
No, O2 does not satisfy the octet rule because as we know octet rule states that an atom has to have 8 e- in the outer shell. Oxygen has 6 valence electrons, the bonds should be 8-6=2 bonds. So we need 2 more covalent bonds to form an octet.
In a covalent bond the electrons are shared between the elements to form an octet. However, in an ionic bond the metal gives up its electron in order to have a perfect octet and the nonmetal takes the electron in order to have a perfect octet.
gain 2 electrons
The atom simply donates, gains, or shares electrons in order to either reach its octet or reduce its electronegativity
Oxygen is in group 16 so it has 6 valence electrons. In order to have a full outer shell, and satisfy the octet rule, it needs 2 more valence electrons to have a full outer shell.