Akanksha gupta Asked a Question
July 7, 2020 8:35 pmpts 30 pts
which one of the following have maximum lattice energy
  • 3 Answer(s)
  • 0 Likes
  • 12 Comments
  • Shares
  • Dinesh khalmaniya Best Answer
    size of ions - Ca+2 > Mn+2>Cu+2>Ni+2. here Ni+2 ion smallest in size and we know that lattice energy is inversely proportional to size. so NiCl2 have maximum lattice energy
    Likes(1) Reply(1)
    Dinesh khalmaniya
    please accept the answer if you got it 🙏
  • Dinesh khalmaniya thankyou
    hope this will help you 🙏
    Likes(1) Reply(0)
  • Priyanshu kumar thankyou
    see the unusual variation in ionic radii
    • cropped4955852317915118242.jpg
    Likes(1) Reply(0)
  • Priyanshu kumar
    NiF2 has highest lattice energy
    Likes(0) Reply(1)
    Priyanshu kumar
    among the given 4 molecule the size of Ni2+ is less than Ca2+,mn2+and cu2+
  • Priyanshu kumar
    as you know size smaller, charge density is more so attraction more
    Likes(0) Reply(1)
    Priyanshu kumar
    attraction more means more lattice energy
  • Akanksha gupta
    but sir here CFSE is maximum of cu+2
    Likes(0) Reply(1)
    Priyanshu kumar
    see size of Ni2+...and Cu2+
  • Akanksha gupta
    sir here cu+2 have maximum L.E
    • cropped-2841179.jpg
    Likes(0) Reply(1)
    Priyanshu kumar
    see there is unusual variation in ionic radii among transition metal cations and data also suggest that NiF2 has little bit more L.E than CuF2(3046 for NiF2 n 3042 for CuF2) as you...
    Show more
  • Dinesh khalmaniya
    check it
    • cropped4458159846672031673.jpg
    Likes(1) Reply(0)
  • Akanksha gupta
    L.E of transition metal ion in +2 o.s maximum L.E is cuf2+2
    Likes(1) Reply(0)
  • Suman Kumar
    NiF2 will have highest Lattice energy. It is tough to decide between Ni²+ & Cu²+ halide lattice energy. Sometimes Nickel win sometime copper win.
    Likes(1) Reply(0)
  • comment View All Comments(2)