How do I calculate the neutrons electrons and protons of these?

I figured out that calcium has 20 of each, but then how do i calculate these? Can you please explain how these work? Calculate protons, neutrons and electrons of Ca 2+ Calculate protons, neutrons and electrons of Cl 1- Calculate protons, neutrons and electrons of Ca -41 I don't understand how to... show more I figured out that calcium has 20 of each, but then how do i calculate these? Can you please explain how these work?

Calculate protons, neutrons and electrons of Ca 2+

Calculate protons, neutrons and electrons of Cl 1-

Calculate protons, neutrons and electrons of Ca -41

I don't understand how to calculate them with the ions on the end. Please help?
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