The spin only magnetic moment for ion having `d^8` electronic configuration is .............. B.M.

Explanation

To find the spin-only magnetic moment for an ion with a \(d^8\) electronic configuration, we can follow these steps:

### Step 1: Understand the Magnetic Moment Formula
The formula for calculating the spin-only magnetic moment (\(\mu\)) is given by:
\[ \mu = \sqrt{n(n + 2)} \]
where \(n\) is the number of unpaired electrons.
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