Question

In Newland's table, cobalt and were placed in the same column along with fluorine, chlorine and bromine.

• A. nickel
• B. iron
• C. sodium
• D. carbon

Answer 1

The correct option is A nickel

• In order to fit elements into law of octaves, Newlands, not only adjusted two elements in the same slot but also adjusted some unlike elements under the same note.
  
• Cobalt and nickel are in the same slot and are positioned in the same column with fluorine, chlorine and bromine possessing different properties than these elements.
  
• Iron possessing similar properties as cobalt and nickel, is placed far away from these elements.