part 2\nremember the standard format for writing the formula of an ionic compound.\nalthough nonmetals may…

part 2\nremember the standard format for writing the formula of an ionic compound.\nalthough nonmetals may bond in different combinations, there is only one combination of a particular pair of ions that results in a neutral compound.\nwhen forming a monatomic ion, k will electron(s), while s will electron(s).\nthe formula for potassium sulfide is therefore

part 2\nremember the standard format for writing the formula of an ionic compound.\nalthough nonmetals may bond in different combinations, there is only one combination of a particular pair of ions that results in a neutral compound.\nwhen forming a monatomic ion, k will electron(s), while s will electron(s).\nthe formula for potassium sulfide is therefore

Answer

Explanation:

Step1: Determine ion - formation of K

Potassium (K) is in Group 1 of the periodic table. It has 1 valence electron and will lose 1 electron to form a $K^{+}$ ion.

Step2: Determine ion - formation of S

Sulfur (S) is in Group 16 of the periodic table. It has 6 valence electrons and will gain 2 electrons to form a $S^{2 - }$ ion.

Step3: Write the formula of potassium sulfide

To form a neutral compound, we need 2 potassium ions for every 1 sulfide ion. So the formula is $K_{2}S$.

Answer:

When forming a monatomic ion, K will lose 1 electron(s), while S will gain 2 electron(s). The formula for potassium sulfide is $K_{2}S$.