Y is the ion of an element X. Y contains 13 protons, 14 neutrons and 10 electrons.
Predict the formula of the compound that contains Y and the oxide ion.

Explanation

To solve the problem, we need to determine the formula of the compound that contains the ion Y and the oxide ion. Let's break this down step by step.

### Step 1: Identify the Element X
Y has 13 protons, which means it corresponds to the element Aluminum (Al) since the atomic number of Aluminum is 13.

### Step 2: Determine the Charge of Ion Y
Y has 10 electrons. In a neutral atom, the number of protons equals the number of electrons. Since Y has more protons (13) than electrons (10), it is positively charged. The charge can be calculated as follows:
- Protons = 13
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