A nucleus Pu emits an alpha particle and changes to U which emits a beta particle and then a gamma particle to change into `""_(93)^(235)Np`. Write the above nuclear changes in form of an equation stating the atomic number and mass number of each nucleus.

Explanation

To solve the problem, we need to write the nuclear changes that occur when a plutonium (Pu) nucleus emits an alpha particle, transforms into uranium (U), then emits a beta particle, and finally a gamma particle to transform into neptunium (Np). We will represent each step with the appropriate atomic number and mass number.

### Step-by-Step Solution:

1. **Identify the initial nucleus:**
- The initial nucleus is Plutonium (Pu).
- The atomic number (Z) of Pu is 94, and its mass number (A) is 239.
- Thus, we can represent it as:
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