Answer:
2 elements (calcium and chlorine)
Explanation:
We are given the compound CaCl₂
We are supposed to determine the number of elements in the compound.
- First we need to know that a compound is made up of several atoms from different elements.
- In this case, calcium chloride is an ionic compound that is made up of calcium atom and two chlorine atoms.
- Thus, we would say that calcium chloride is made up of two elements, that is, calcium and chlorine.
