Question

Особенностями металличесткой связи в кристалле железа объясняется его: а)ковкость б)высокая плотность в)нестойкость к коррозии г)высокая температура плавления

Answer 1

Особенностями металличесткой связи в кристалле железа объясняется его:а)ковкость

Answer 2

Explanation of the Characteristics of Metallic Bonding in Iron

Metallic bonding is a type of chemical bonding that arises from the electrostatic attractive force between conduction electrons (in the form of an electron sea) and positively charged metal ions. This type of bonding is responsible for several key characteristics of iron.

1. Ductility and Malleability (Ковкость) - The metallic bonding in iron explains its ductility and malleability, allowing it to be hammered or rolled into thin sheets without breaking.

2. High Density (Высокая плотность) - The high density of iron can be attributed to the close packing of atoms due to metallic bonding.

3. Resistance to Corrosion (Нестойкость к коррозии) - The metallic bonding in iron contributes to its susceptibility to corrosion, as the free electrons in the electron sea can facilitate the oxidation of iron.

4. High Melting Point (Высокая температура плавления) - The strong metallic bonding in iron results in a high melting point, as a significant amount of energy is required to overcome the attractive forces between the metal ions and the delocalized electrons.

In summary, the characteristics of metallic bonding in iron, including ductility, high density, resistance to corrosion, and high melting point, can be attributed to the nature of the electron sea and the positive metal ions held together by strong electrostatic forces