Write the chemical formula for mathrm(Na) and mathrm(S) (sodium sulfide). mathrm(Na)_(2) mathrm(~S) mathrm(NaS)

# ExplanationTo write the chemical formula for a compound composed of sodium (Na) and sulfur (S), we must consider the charges of the ions involved. Sodium is a group 1 element and typically forms a +1 charge when it becomes an ion. Sulfur is a group 16 element and typically forms a -2 charge when it becomes an ion.To achieve electrical neutrality, the charges must balance out. Since sodium has a +1 charge and sulfur has a -2 charge, two sodium ions are needed for every sulfur ion to balance the charges. This results in a formula where there are two sodium ions (Na) for every one sulfur ion (S).Therefore, the correct chemical formula for sodium sulfide is .# Answer