Yes, neodymium is ferromagnetic. Ferromagnetic is a characteristic of an element that can be permanently magnetized like iron. Thus, neodymium can be permanently magnetized, so it is ferromagentic.
a ferromagnetic is of or relating to substances with an abnormally high magnet permeability, a definite saturation point, and appreciable residal magnetism and hysteresis.
No. Aluminium is a paramagnetic material and has not a permanent magnetization like a ferromagnetic material. Instead, Al only shows a weak magnetic moment in presence of an external magnetic field....