Determine if a bond between each pair of atoms would be pure covalent, polar covalent, or ionic. (a) C and Cl (b) P and S (c) Li and Br (d) Br and Br
Question
Determine if a bond between each pair of atoms would be pure covalent, polar covalent, or ionic. (a) C and Cl (b) P and S (c) Li and Br (d) Br and Br
Solution
(a) C and Cl: The electronegativity difference between Carbon (C) and Chlorine (Cl) is 0.61. This difference falls into the range of 0.5-1.7, so the bond between C and Cl is polar covalent.
(b) P and S: The electronegativity difference between Phosphorus (P) and Sulfur (S) is 0.2. This difference falls into the range of 0-0.4, so the bond between P and S is pure covalent.
(c) Li and Br: The electronegativity difference between Lithium (Li) and Bromine (Br) is 1.96. This difference is greater than 1.7, so the bond between Li and Br is ionic.
(d) Br and Br: The electronegativity difference between two Bromine (Br) atoms is 0. This difference falls into the range of 0-0.4, so the bond between Br and Br is pure covalent.
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