The official definition for the word neodymuin is "the chemical element of atomic number 60, a silvery-white metal of the lanthanide series. Neodymium is a component of misch metal and some other alloys, and its compounds are used in coloring glass and ceramics."
60 protons, as its atomic number is 60.
The weight of neodymium (Nd), do you mean Atomic weight (mass) which can be check using Periodic Table of element. Atomic Number 60; Atomic weight 144.24; Density 6960 kg per m3 Hope this helps, using the term weight for an element without stating in what context, makes it difficult to know what answer is required.