A radioactive nucleus decays by emitting one alpha and two beta particles, the daughter nucleus is `…………………..` of the parent

Explanation

To solve the problem of determining the relationship between the daughter nucleus and the parent nucleus after the decay process, we can follow these steps:

### Step 1: Define the Parent Nucleus
Let’s denote the parent radioactive nucleus as \( M \) with a mass number \( A \) and atomic number \( Z \).

### Step 2: Emission of Alpha Particle
When the nucleus emits one alpha particle, the following changes occur:
- The mass number decreases by 4 (since the mass number of an alpha particle is 4).
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