* Calcium's Atomic Number: Calcium has an atomic number of 20, meaning it has 20 protons in its nucleus.
* Neutral Atoms: A neutral atom has an equal number of protons (positive charge) and electrons (negative charge).
* Calcium's Electron Configuration: Calcium typically has 20 electrons to balance its 20 protons.
Therefore, you don't need to add or remove any electrons to make calcium neutral. It's already neutral in its natural state.
