Write the empirical formula for at least four ionic compounds Ca2+,Ni4+,Cl-,S2-

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

i think the answer is terrae but not 100 percent sure. ▓▬▬ §

so what is the problem with your lab report and whats the subject of the lab report? i will you