What does the chemical formula CaCl2 show about the compound it represents? It is made up of one element. It is made up of two elements. It is made up of three elements. It is made up of four elements.

The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. they bind protons and neutrons (“nucleons”) into atomic

Ithink the answer is b.