Exersive 1.2. complete the following sentences: 1)metals are... 2)metallurgy is... 3)most metals are... 4)the regular arrangement of atoms in metals... 5)the properties of the metals depend...

Exercise 1.2 Completion

1. Metals are chemical elements characterized by high electrical and thermal conductivity, malleability, ductility, and a distinctive luster. At the atomic level, they are defined by their ability to readily lose valence electrons to form positive ions (cations) held together by metallic bonds.
2. Metallurgy is the branch of science and technology concerned with the properties of metals and their production and purification. It encompasses the study of extracting metals from their ores, the development of alloys, and the application of heat treatment processes to alter the physical and chemical behavior of metallic materials.
3. Most metals are found in nature in the form of compounds, such as oxides, sulfides, or carbonates, rather than in their pure elemental state. Physically, most metals are solids at room temperature (with the exception of mercury), possess high melting points, and exhibit high density due to the close-packed nature of their atomic structures.
4. The regular arrangement of atoms in metals is known as a crystal lattice or crystalline structure. This highly ordered spatial pattern allows layers of atoms to slide over one another under pressure without breaking the metallic bond, which explains why metals are generally ductile and malleable rather than brittle.
5. The properties of the metals depend on their atomic structure, the strength of the metallic bonds between their atoms, and the specific arrangement of their crystal lattice. Additionally, these properties can be significantly influenced by the presence of impurities, alloying elements, and the thermal or mechanical processing the metal has undergone.

Would you like me to provide a table comparing the different types of crystal lattices found in common metals?