What characteristic of metals makes them good electrical conductors Brainly?
What characteristic of metals makes them good electrical conductors Brainly?
Answer: They have mobile valence electrons.
What characteristic of metals makes them good electrical conductors A They have mobile valence electrons b They have mobile protons c they have mobile cations D their crystal structures can be rearranged easily?
Answer: To have a high electrical conductivity, a normal metal should have mobile valence electrons and a long electron mean free path. Explanation: A long mean free path means that the electron goes a long distance between scattering events.
Why do metals tend to be good conductors of electric current?
Metals are excellent conductors because the atoms in a metal form a matrix through which their outer electrons can move freely. Instead of orbiting their respective metal atoms, they form a “sea” of electrons that surrounds the positively charged atomic nuclei of the interacting metal ions .
What characteristics of valence electrons makes most metals good conductors?
The characteristics of metallic bonds explain a number of the unique properties of metals:
- Metals are good conductors of electricity because the electrons in the electron sea are free to flow and carry electric current.
- Metals are ductile and malleable because local bonds can be easily broken and reformed.
Does more electrons mean more conductivity?
The conductivity of the atom depends on the number of electrons that are in the valence shell. When an atom has only one electron in valence shell, it is almost a perfect conductor.
How do metallic substances conduct electricity?
The structure and bonding of metals explains their properties : they are electrical conductors because their delocalised electrons carry electrical charge through the metal. they are good conductors of thermal energy because their delocalised electrons transfer energy.
Can hydrogen bonds conduct electricity?
When water molecules interact with each other, the positively charged region (hydrogen atom) of one water molecule forms a weak hydrogen bond with the negatively charged region (oxygen atom) of a second water molecule. As a result of the charged regions in water, water is a polar molecule and can conduct electricity.
Why do metallic elements conduct electricity?
Electrical conductivity in metals is a result of the movement of electrically charged particles. It is these “free electrons” that allow metals to conduct an electric current. Because valence electrons are free to move, they can travel through the lattice that forms the physical structure of a metal.
Can be bent without breaking?
True tolerance makes us flexible. The ability to bend without breaking is linked to the amount of tolerance we develop. When we are fully flexible, we become able to adjust to the most unexpected, negative and difficult situations and people.
What is ability to bend without breaking?
Flexibility: being able to bend without breaking.
Why do you think the materials can be bent?
Answer. Answer: Elasticity describes a material’s tendency to return to its original size and shape when a distorting force is removed. As opposed to materials that exhibit plasticity (where the change in shape is not reversible), an elastic material will return to its previous configuration when the stress is removed.
What are the characteristics of solid materials that can be bent?
The answer is only its shape changed and physical composition non of the chemical composition because there is no new substance formed by bending the solid.
What happens to solids when bent?
Answer: When solid materials are bent, pressed, or hammered experience a physical change. In physical change only the appearance of a substance or object changes, not its chemical structure. The processes that cause physical changes are cutting, bending, dissolving, freezing, boiling, and melting.
What are the similarities of hammered and cut?
Answer. The similarities between them is that hammer is you need more force to attach the nail while in cutting is less force.
What materials can be hammered?
Answer. Answer:Examples of malleable metals are gold, iron, aluminum, copper, silver, and lead.
What changes happened when they are bent hammered pressed and cut?
Solid materials change in size and shape. When solid materials are bent, pressed, or hammered experience a physical change. The processes that cause physical changes are cutting, bending, dissolving, freezing, boiling, and melting.
What materials have the ability to bend hammer cut or pressed?
Answer. Answer: Metals can bend ,hammer,cut or can be pressed.