Which of the following pairs of elements could react to form an ionic compound? check all that apply.

Following are the pair of elements that result in an ionic compound

Ca and Cl, S and K,

Option A and B

Explanation:

Ionic compounds are defined as the compound that consists of ions held by two atoms of differently charged ions.These compounds have a positive charge of ions called cations and a negatively charged element is anions.In the above options, we shall say that the atoms such as Ca and K both result in cations as they release an electron to become a positive ion.Also, Cl and S both result in anions as they attract more electron to form negative ions.These positive and negative ion together results in an ionic compound.

Tolerance to high levels of salinity