Sodium and Chlorine bond ionically to form table salt. When we say they bond ionically we mean?
A. They are sharing their electrons
B. One atom is gaining electrons while one is losing electrons
C. protons are exchanged between atoms
D. ions are exchanged between atoms
I’m confused.. 😛
Right, ionic bonding is where two atoms ‘bond’ by one giving away electrons. We say that atoms want full outer shells of 8, this makes them happy and unreactive. So if one atom-atom a- had an outer shell of 7, it want to gain one electron to make a shell of 8. Another atom-atom b- (of a different element) comes along and has one electron in it’s outer shell. So atom A wants to have an extra electron, and atom b wants to get rid of an electron, so if atom b gives its spare electron to atom a, they are both happy.
I say ‘bond’ because an ionic bond is just an attraction between a negative and positive ion. You make an ion by gaining or losing an electron.
So, answer A is describing covalent bonding, so no.
Answers B is ioninc bonding (so that is right)
Answer C isn’t bonding.
Answer D is wrong, you cant swap ions (you can become an ion, but you cant swap one.)
So basically, the answer is B
Chlorine has a stronger pull for electrons than Sodium.
Chlorine needs to gain 1 electron to fill its octect, Sodium needs to lose one
Chlorine pulls the 1 valence electron from sodium and gains a negative charge as a result of an extra electron
Sodium has a positive charge as a result of losing one electron
They are both ions (atoms with an electrical charge)
the attraction between the positive and negative ions (opposites attract) is what forms the ionic bond
I’m guessing this is for a homework assignment, so ill just tell you
But if you want to know why, just tell me 😀
mm .. hard question , i think b is the right answer