Question

which image shows an example of the weak nuclear force in action?
a. image of a radioactive atom (with green and purple spheres), a wavy red line labeled “energy”, a red line labeled “radiation” pointing to a green sphere labeled “particle”

Explanation:

The weak nuclear force is involved in radioactive decay (like beta decay), where a radioactive atom emits particles and energy. Image A shows a radioactive atom emitting a particle and energy (radiation), which is consistent with weak nuclear force - mediated processes (e.g., beta decay, where the weak force causes a neutron to change into a proton, emitting a particle and energy). Other images (not fully shown but from context) likely don't represent weak nuclear force (e.g., maybe electromagnetic or strong force - related). So image A is the example of weak nuclear force in action.

Answer:

A. The image labeled A (showing a radioactive atom emitting a particle and energy as radiation)