The formula of sodium perxenate is ______.

Explanation

To find the formula of sodium perxenate, we need to follow these steps:

### Step 1: Understand the components of sodium perxenate
Sodium perxenate is a compound that consists of sodium (Na) and the perxenate ion. The perxenate ion is derived from xenon (Xe) and contains the xenon atom in a higher oxidation state.

### Step 2: Identify the perxenate ion
The perxenate ion is represented as \( \text{XeO}_6^{2-} \). This indicates that the ion contains one xenon atom and six oxygen atoms, with an overall charge of -2.

### Step 3: Combine sodium with the perxenate ion
Since sodium has a +1 charge (as it is a Group 1 element), to form a neutral compound with the perxenate ion, we need two sodium ions to balance the -2 charge of the perxenate ion.

### Step 4: Write the formula
Combining the two sodium ions with the perxenate ion, we get the formula for sodium perxenate as \( \text{Na}_2\text{XeO}_6 \).

### Final Answer
The formula of sodium perxenate is \( \text{Na}_2\text{XeO}_6 \).

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