What happens to some metals when the kinetic energy of their particles is decreased?(1 point)

A They expand.
B They contract.
C They melt.
D They conduct.

B They contract.

B. They contract.

To determine what happens to some metals when the kinetic energy of their particles is decreased, we need to understand how changes in kinetic energy affect the behavior of metals.

The kinetic energy of particles in a substance is associated with their motion. When the kinetic energy decreases, it generally means that the particles are becoming less energetic and slowing down.

In the case of metals, the behavior can vary depending on the specific metal and conditions. However, in most cases, when the kinetic energy of metal particles is decreased, they tend to contract rather than expand. This is because the particles lose energy and their movement becomes more restricted, causing them to come closer together.

Therefore, the correct answer to the question is B) They contract.