[gmx-users] Fw: .gro file shows the wrong mass

[hosein geraili]

 Dear all,
I tried to create Potassium-acetate .gro file using "acpype", and the same procedure works well with Sodium-acetate. The problem is when I open the .gro file in VMD for NA_ACC the mass for Sodium is correct, but for K_ACC it shows the mass of Potassium as 12 which is wrong.I attached the .gro file.What is the problem??BEst