Question

select all that apply
which statements about the formation of ionic bonds in sodium chloride are true?
a chlorine atom accepts a valence electron from another chlorine atom.
the oppositely charged ions attract each other in an ionic bond.
a sodium atom transfers its valence electron to a chlorine atom.
the chlorine atoms become positive ions.
the sodium atoms become negative ions.

Explanation:

• In sodium chloride ($NaCl$), sodium ($Na$) has one valence electron and chlorine ($Cl$) has seven valence electrons. Sodium transfers its valence electron to chlorine.
• When sodium loses an electron, it becomes a positive ion ($Na^{+}$), and when chlorine gains an electron, it becomes a negative ion ($Cl^{-}$). Oppositely - charged ions ($Na^{+}$ and $Cl^{-}$) attract each other to form an ionic bond.
• Chlorine atoms gain electrons to become negative ions, not positive ions. Sodium atoms lose electrons to become positive ions, not negative ions. And in $NaCl$ formation, chlorine accepts an electron from sodium, not from another chlorine atom.

Answer:

B. The oppositely charged ions attract each other in an ionic bond.
C. A sodium atom transfers its valence electron to a chlorine atom.