7. a) Classify the following bonds as ionic, polar covalent, or nonpolar qualita

Question

7. a) Classify the following bonds as ionic, polar covalent, or nonpolar qualitatively based solely on each element's position on the periodic table. S-S Na-N O-I S-Cl Cu-Cl

b) Classify the bonds (ionic, polar covalent, nonpolar) formed between each pair of elements based on electronegativity values in the following table: Element 1.) Sc 2.) Be 3.) H 4.) P 5.) S 6.) I 7.) Br 8.) Cl 9) O 10) F

Electronegativity 1) 1.3 2) 1.5 3) 2.1 4) 2.1 5) 2.5 6) 2.5 7) 2.8 8) 3.0 9) 3.5 10) 4.0

H-Br H-P S-O Be-F Be-Cl

Explanation / Answer

Guide line for ionic, covalent or nonpolar bonds:
Electronegativity difference between bonded atoms = 0 then its nonpolar.
= more than 0 and less than 1.7 are polar covalent.
= greater than 1.7 are ionic.

7. a) S-S (difference between two atoms would be zero due to same atom hence, nonpolar qualitatively)

Na-N (difference between two atoms would be more due to more difference in there periodic position hence, ionic bond)

O-I (difference between two atoms would be less due to less difference in their periodic position hence, polar covalent bond)

S-Cl (difference between two atoms would be less due to less difference in their periodic position hence, polar covalent bond)

Cu-Cl (difference between two atoms would be less due to less difference in there periodic position hence, polar covalent bond)

b) H-Br (difference of electronegativity between two atoms = 2.8-2.1 = 0.7 hence, polar covalent bond)

H-P (difference of electronegativity between two atoms = 2.1-2.1 = 0.0 hence, non polar bond)

S-O (difference of electronegativity between two atoms = 3.5-2.5 = 1.0 hence, polar covalent bond)

Be-F (difference of electronegativity between two atoms = 4.0-1.5 = 2.5 hence, ionic bond)

Be-Cl (difference of electronegativity between two atoms = 3.0-2.1 = 0.9 hence, polar covalent bond)

Related Questions

Navigate

• Browse (All)
• Browse 7
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.