The half life of `""_(92)^(238)U` undergoing `alpha` decay is `4.5 xx 10^9` years what is the activity of 1g. Sample of `""_(92)^(238)U`.

Explanation

To find the activity of a 1g sample of Uranium-238 undergoing alpha decay, we will follow these steps:

### Step 1: Calculate the number of atoms in 1 gram of Uranium-238

We know that the molar mass of Uranium-238 (U-238) is approximately 238 g/mol. Using Avogadro's number, which is \(6.022 \times 10^{23}\) atoms/mol, we can calculate the number of atoms in 1 gram of U-238.

\[
\text{Number of atoms} = \frac{1 \text{ g}}{238 \text{ g/mol}} \times 6.022 \times 10^{23} \text{ atoms/mol}
...