Question

Co is symbol for

• A. Copper
• B. Cobalt
• C. Calcium
• D. Silver

Answer 1

The correct option is B Cobalt

A symbol is a shortened form of the name of an element. Mostly we use the first letter of the element. In case the first letter of the element is same as another element then we take first two letter of the element. Some symbols are based on the old names or Latin name of the element.
The symbol for copper is Cu given on its Latin name Cupurum.
The symbol for cobalt is Co. First two letter of the element is chosen as its symbol.
The symbol for calcium is Ca. First two letter of the element is chosen as its symbol.
The symbol for silver is Ag based on its Latin name Argentum.