Chemistry The Periodic Table Metals and Nonmetals. Density of Metals. In a metal, atoms readily lose electrons to form positive ions (cations). Metals typically consist of close-packed atoms, meaning that the atoms are arranged like closely packed spheres. 1 Answer Doc Croc. You can think of ductility as the capacity of a material to be drawn into a wire without fracturing. Ionic compounds are brittle. A) 24 B) 8 C) 21... A: Number of Peaks in … In materials science, ductility is defined by the degree to which a material can sustain plastic deformation under tensile stress before failure. Ductility and malleability are not the same. into wire). Question: Why A Metal Is Brittle And Another Metal Is Ductile? Metals exposed to temperatures below this point are susceptible to fracturing, making this an important consideration when choosing which metals to use in extremely cold temperatures. *Response times vary by subject and question complexity. Metals typically consist of close-packed atoms, meaning that the atoms are arranged like closely packed spheres. Example metals include gold, sodium, copper, iron, and many other elements. For ceramics, this type of transition occurs at much higher temperatures than for metals. Metals are malleable and ductile. Density of Metals. These free moving electrons are why solid metals can conduct electricity and ionic compounds cannot. This problem has been solved! Nonmetals are not generally ductile. Median response time is 34 minutes and may be longer for new subjects. The ductility of a material depends on the ease of dislocation motion; easier the movement of dislocation, more ductile the material. Example metals include gold, sodium, copper, iron, and many other elements. Metals are usually malleable, ductile, and shiny. If a small stress is put onto the metal, the layers of atoms will start to roll over each other. A metal's ductile-brittle transition temperature is the point at which it can withstand tensile stress or other pressure without fracturing. Metals are described as malleable (can be beaten into sheets) and ductile (can be pulled out into wires). FCC metals remain ductile down to very low temperatures. Why are metals ductile instead of brittle? Q: How many peaks would you expect to see in the 13C NMR spectrum of this substance? Metals are usually malleable, ductile, and shiny. This is because of the ability of the atoms to roll over each other into new positions without breaking the metallic bond. Examples of metals that are not very ductile include tungsten and high-carbon steel. In a metal, atoms readily lose electrons to form positive ions (cations). So, in metals, valence electrons are free to move around freely throughout the crystal. Ductility is a mechanical property commonly described as a material's amenability to drawing (e.g. BCC metals are less ductile but stronger, eg iron, while HCP metals are usually brittle. Ductility Versus Malleability . Zinc is HCP and is difficult to bend without breaking, unlike copper. Show transcribed image text. May 25, 2014 Because the delocalised electrons are free to move. See the answer. As temperature decreases a ductile material can become brittle - ductile-to-brittle transition Alloying usually increases the ductile-to-brittle transition temperature. Many other features depend upon the crystal structure of metals, such as density, deformation processes, alloying behavior, and much more. Expert Answer