The range of _________ force is of the order of 10^-16_m.

weak nuclear

The correct answer is option 4. weak nuclear.

The weak nuclear force is one of the four fundamental forces of nature, alongside gravity, electromagnetism, and the strong nuclear force. It is responsible for certain types of particle interactions and plays a crucial role in the decay of subatomic particles.

Here's an explanation of the characteristics and range of the weak nuclear force:

1. Weak Nuclear Force: The weak nuclear force is responsible for the decay of certain subatomic particles, such as beta decay, where a neutron decays into a proton, an electron, and an antineutrino. It is involved in processes that change the flavor of quarks (fundamental particles that make up protons and neutrons) and leptons (e.g., electrons and neutrinos).

2. Range: The weak nuclear force has a very short range, on the order of 10^-16 meters. This means that it operates effectively only at extremely small distances within atomic nuclei.

3. Mediating Particle: The weak nuclear force is mediated by three elementary particles called the W+, W-, and Z bosons. These bosons act as carriers of the weak force and facilitate interactions between particles involved in weak processes.

4. Weak Interaction: The weak nuclear force is characterized by its comparatively weak strength compared to electromagnetism and the strong nuclear force. It is weaker than electromagnetism but stronger than gravity. Despite its weak strength, it is crucial for processes such as the nuclear fusion that powers the sun and other stars.

Overall, the weak nuclear force plays a vital role in the behavior of subatomic particles and the structure of atomic nuclei. It is essential for understanding fundamental interactions in particle physics and the dynamics of nuclear processes.