What happens to dome metals when the kinetic energy of their particles is decreased? (1 point)
When the kinetic energy of the particles in some metals is decreased, the metal will become more malleable and ductile.
When the kinetic energy of particles in metals decreases, several things happen.
1. Decreased thermal expansion: Metals tend to expand when heated due to the increased kinetic energy of their particles. When this kinetic energy decreases, the particles move less vigorously, causing the metal to contract or shrink.
2. Increased density: As the particles in the metal lose their kinetic energy and slow down, they become more closely packed together. This results in an increase in the density of the metal.
3. Decreased electrical conductivity: The ability of metals to conduct electricity is due to the movement of free electrons. When the kinetic energy of the particles decreases, the movement of these free electrons slows down, leading to a decrease in electrical conductivity.
4. Decreased thermal conductivity: Similarly, the ability of metals to conduct heat is also affected by the kinetic energy of their particles. When the particles slow down, they transfer thermal energy less efficiently, resulting in a decrease in thermal conductivity.
5. Decreased malleability and ductility: The ability of metals to be easily hammered or drawn into thin wires is known as malleability and ductility, respectively. When the kinetic energy of the particles decreases, the metal becomes less malleable and ductile, as the particles are less mobile and harder to rearrange.