Question

write the charge of each ion in the compound below.

sr(no3)2

sr = □
no3 = □

write the name for the formula below.

Explanation:

Step1: Determine the charge of \(Sr\)

\(Sr\) is in Group 2 of the periodic table. Elements in Group 2 tend to lose 2 electrons. So, the charge of \(Sr\) is \(+2\).

Step2: Determine the charge of \(NO_3\)

Let the charge of \(NO_3\) be \(x\). In the compound \(Sr(NO_3)_2\), the overall charge is \(0\) (neutral compound). We know \(Sr\) has a charge of \(+2\). Using the formula: \((+2)+2x = 0\). Solving for \(x\): \(2x=- 2\), so \(x=-1\).

Step3: Name the compound

The compound \(Sr(NO_3)_2\) is named strontium nitrate. The cation is \(Sr^{2 +}\) (strontium ion) and the anion is \(NO_3^{-}\) (nitrate ion). In ionic compound naming, we first name the cation followed by the anion.

Answer:

\(Sr = + 2\), \(NO_3=-1\), Name: strontium nitrate