Question

how many barium atoms are in the compound below? ba(mno4)2

Explanation:

Step1: Analyze the compound formula

In the formula \(Ba(MnO_4)_2\), the subscript outside the parentheses applies to the entire polyatomic ion inside. But the element \(Ba\) (barium) is outside the parentheses and has no subscript.

Step2: Determine the number of barium atoms

A lack of a subscript for an element in a chemical formula implies a subscript of \(1\).

Answer:

\(1\)