Arrange the bonds Si–S, F–Fe, and N–Cl in order of increasing covalent character.?

1 Answer

• bond between non metal – non metal is covalanet

  so N-Cl will have the most covalent character

  in between Si and Fe ….Fe is more metallic

  so covalent character will increase in this way – F-Fe < Si-S < N-Cl

  edit – you gave me a thumbs down …..but i dont know why

  electronegativity of Si = 1.9

  electronegativity of S = 2.58

  electronegativity of F = 3.98

  electronegativity of Fe = 1.83

  electronegativity of N = 3.04

  electronegativity of Cl = 3.16

  electronegativity difference between N-Cl = 3.16 – 3.04 = 0.12

  electronegativity difference between F-Fe = 3.98 – 1.83 = 2.15

  electronegativity difference between Si-S = 2.58 – 1.9 = 0.68

  as you must be knowing that as electronegativity difference between elements increases ionic character increases….

  so F-Fe will most ionic followed by Si-S and then N-Cl

  conversely N-Cl will have most covalent character followed by Si-S and then F-Fe

  see this

  http://www.chemteam.info/Bonding/Electroneg-Bond-P…