Staements I: In alpha decay of different radioactive nuclides, the energy of alpha particles has been compared. It is found that as the energy of alpha particle increases the half-life of the decay goes on decreasing.
Staements II: More is the energy in any decay process, more is the probability of decaying the nuclide which leads to faster rate of decay.

Explanation

To analyze the given statements, we will break down the information provided in each statement and evaluate their validity step by step.

### Step 1: Understanding Statement I
**Statement I:** In alpha decay of different radioactive nuclides, the energy of alpha particles has been compared. It is found that as the energy of alpha particle increases, the half-life of the decay goes on decreasing.

- **Explanation:** In alpha decay, an unstable nucleus emits an alpha particle (which consists of 2 protons and 2 neutrons). The energy of the emitted alpha particles can vary depending on the nuclide.
- When the energy of the alpha particle increases, it indicates that the alpha particle is emitted with greater kinetic energy. This higher energy allows the alpha particle to overcome the potential barrier of the nucleus more effectively.
- As a result, the decay occurs more quickly, leading to a shorter half-life. Therefore, this statement is correct.

### Step 2: Understanding Statement II
**Statement II:** More is the energy in any decay process, more is the probability of decaying the nuclide which leads to a faster rate of decay.

- **Explanation:** In radioactive decay, the rate of decay is related to the probability of the decay process occurring. Higher energy in the decay process increases the likelihood that the decay will occur.
- This is because higher energy can help the particles overcome the barriers that prevent decay. Thus, a higher energy level correlates with a higher probability of decay, which results in a faster decay rate.
- Therefore, this statement is also correct.

### Step 3: Conclusion
Both statements are correct. Statement I describes the relationship between the energy of alpha particles and the half-life of radioactive decay, while Statement II explains the general principle that higher energy leads to a higher probability of decay.

### Final Answer
Both Statement I and Statement II are correct, and Statement II provides an explanation for Statement I.

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