Question

question 4 (1 point) use what you learned from watching the videos to answer the question below. an unknown ion from group 1a and an unknown ion from group 6a join to make a compound. what would the formula look like? a. x2y b. xy c. xy2 d. x2y2

Explanation:

Step1: Determine ion charges

Elements in group 1A form +1 ions. So, X has a charge of +1. Elements in group 6A form - 2 ions. So, Y has a charge of - 2.

Step2: Use charge - balance to find formula

To balance the charges in a compound, we need 2 X ions for every 1 Y ion. The formula of the compound formed by X and Y is \(X_2Y\).

Answer:

\(X_2Y\)