CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -Cobalt is a chemical element with symbol Co and atomic number 27.

Detailed explanation-2: -The symbol CO stands for carbon monoxide, but the sym-bol Co stands for the element cobalt.

Detailed explanation-3: -The C in $CO$ represent the carbon atom and the O represent the oxygen atom. So, the$CO$ is a molecule made up of carbon and oxygen atoms. Whereas the $Co$ represents an element named as Cobalt.

Detailed explanation-4: -Cobalt is a chemical element – a substance that contains only one type of atom. Its official chemical symbol is Co and its atomic number is 27, which means that a cobalt atom has 27 protons in its nucleus.