Which of the following pairs of elements would be Least likely to form a compound by ionic bonding?

Question

1. Na and S2. Al and F3. Mg and Br4. Cs and O 5. C and NNa and S is ionic it has 1.6 electronegativityAl and F is not ionic since they are both nonmetalsMg and Br is ionic has 1.6 electronegativityCs and O is ionic and it has 2.8 electronegativityC and N isnt ionic because both are nonmetal. when it means least what is it looking for i’d assumer its Na and S or Mg and Br but since they’re both 1.6 i dont know what to do.

Mozelle D&#039;Amore · Accepted Answer

When you continue studies in Chem you find ionic/covalent form a scale where few compounds are completely covalent (homonuclear) or 100% ionic, so most covalent is C and N as you predict they are closest in electronegativity Cs2O is most completely ionic with all the rest on the continuum. AlF3 is most definitely covalent in character but the bonds are polar.http://en.wikipedia.org/wiki/Aluminium_fluoride

Mozelle D&#039;Amore · Answer

5. C and N… these are very likely to form a covalent bond, but not an ionic bond. (continue looking at electronegativities.)PS Al Aluminum is a metal

Carol Funk

Which of the following pairs of elements would be Least likely to form a compound by ionic bonding?

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