Answer:
CaS
Explanation:
calcium is Ca2+ and sulfur is S2- because the charges are equal you only need one of each atom, so the answer is CaS
The formula for the ionic compound formed between calcium and sulfur is CaS.
The chemical compounds which is made up of ions that formed charged particles when a atom or a group of atoms lose or gains electrons is called Ionic Compound.
A calcium atom has 2 valence electrons and A sulfur atom has 6 valence electrons. By losing its 2 electrons calcium atom can achieve a noble gas configuration and by gaining the 2 electrons sulfur atom can achieve noble gas configuration.
Calcium donates its 2 valence electrons to sulfur atom and it forms Ca⁺² ions and S²⁻ ion. Ca⁺² ions and S²⁻ ion both have noble gas configuration. So the formula is CaS (Calcium Sulphide).
Thus, from above conclusion we can say that The formula is CaS for the ionic compound formed between calcium and sulfur.
Learn more about the Ionic compound here: https://brainly.com/question/2687188
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