Soft
Hard
Neodymium is a chemical element having the symbol Nd and an atomic number of 60. It is a soft, silvery metal and conducts electricity.
Neptunium trifluoride is an intermediate for the preparation of neptunium metal.
soft you can bend and hard you can not
hard
it is hard and sometimes soft
Neptunium is a metal.
The three common compounds of neptunium are neptunium dioxide (NpO2), neptunium trichloride (NpCl3), and neptunium tetrafluoride (NpF4).
Neptunium is an individual element; isotopes of neptunium are not separated.
Neptunium(IV) oxide or neptunium dioxide is the chemical compound composed of neptunium and oxygen with the formula NpO2. It forms dark olive[4] green cubic crystals[1].
Electron configuration of neptunium: [Rn]7s26d15f4
No use today; neptunium trifluoride is used to prepare neptunium metal.