Calculate the magnetic moment of a divalent and a trivalent ion in aqueous solution if its atomic number is 25

Explanation

To calculate the magnetic moment of divalent and trivalent ions of an element with atomic number 25, we will follow these steps:

### Step 1: Determine the electronic configuration of the element.
The atomic number 25 corresponds to the element Manganese (Mn). The electronic configuration of Mn is:
\[ \text{Mn: } [\text{Ar}] 3d^5 4s^2 \]

### Step 2: Determine the electronic configuration of the divalent ion (Mn²⁺).
To form the divalent ion (Mn²⁺), we remove 2 electrons from the outermost shell (4s orbital):
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