2 examples of niobium in sentences

Iron Molybdenum Nickel Sodium (11) Hydrogen Lanthanum Titanium Silicon Sodium Niobium Manganese Strontium Nickel Palladium Chromium Barium Magnesium Neodymium Cobalt Aluminum (4) Cobalt Copper Carbon (200 or more)

Germanium Barium Tin Yttrium Tin Carbon Lead Niobium Lead (1) Scandium Erbium Molybdenum Potassium (1) Yttrium Potassium Palladium Doubtful Elements.

2 examples of  niobium  in sentences