Nickel Alloys: The Blend of Strength and Corrosion Resistance Top 3 Nickel Uses The Power Metal MEC Ni Nickel, Periodic Table of the Elements, Shell Structure of Nickel Nickel Element Periodic Table 10 Nickel Element Facts (Atomic Number 28 or Ni) Nickel Chemical Element High Resolution Stock Photography and Images. Substantial Cast aluminum bells feature a pair of metal spheres as clappers, and strung on a wire cord. A dome shaped bell of sand cast aluminum, paired with a triangular, polished oak sail oiled for weatherproofing. Choose from the nickel or antique brass finishes.