Which statement best describes how to predict the formula of a stable ionic compound? use the same number of cations as anions so that the compound is neutral. use more cations than anions so that the compound is positively charged. use enough cations and anions so that the total charge is zero. use fewer cations than anions so that the compound is negatively charged.

Answer : The correct option is, Use enough cations and anions so that the total charge is zero.

Explanation :

Ionic compound : Ionic compounds are made up of metal cation and non-metal anion. Both the cation and anion are held together by the electrostatic force of attraction and they form a neutral compound. In a stable or neutral ionic compound, the net charge is zero.

For example : Sodium chloride is an ionic compound. In sodium chloride, the positive charge of sodium is neutralize by the negative charge of chlorine. The total charge is zero on sodium chloride.

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer