Chapter 15, Problem 7RQ

To determine

The atomic symbol for the element cobalt.

Answer to Problem 7RQ

The atomic symbol for the element cobalt is Co.

Explanation of Solution

Materials can be made of a single atom, two atoms, or more than two atoms. Any material made of only one type of atom is called an element. All elements that are listed in a systematic way in a chart is called the periodic table.

In the periodic table, each element is designated by its unique atomic symbol. This symbol is mainly derived from the letters of the element’s name. The first letter of the symbol will be capitalized. The element cobalt's symbol is $Co$.

Conclusion:

Therefore, the atomic symbol for the element cobalt is $Co$.