List three kinds of crystalline solids, and give an example of each.

Question

Accepted Answer

Welcome back everyone. Which of the following is a kind of crystalline solid. And its example for one, we have molecular solid being graphite. As the example. For two, we have a covalent network solid. In the example being nay for three, we have a metallic solid. In the example being iron. For four, we have ionic solid and the example being cesium bromide. And for five, we have a dipole solid. In the example being ice. For choice A, we have graphite and nale paired for choice B, we have nathene and iron paired. For choice C, we have iron and cum bromide being paired for choice D, we have cesium bromide and ice being paired. And for choice E we have ice and graphite being paired. We're going to begin by recalling our four types of solids. First, beginning with ionic solids, we want to recall that ionic solids consist of a metal and a nonmetal as ions. And an example we consider would be rock salt which consists of sodium and chloride ions. Next, we want to recall our next type of solid which is considered a molecular solid, which we should recall consists of covalent bonds in its molecule. And an example of a molecular solid would be ice which forms a hexagonal crystal lattice. Next, we want to recall our third type of solid, which would be a metallic solid and recall that a metallic solid consists of a metal and another metal or it can just be a metal by itself. And an example of a metallic solid would be an atom like gold. And our fourth type of solid would be a covalent solid where we have atoms bonded in a covalent network that is single and continuous. So we can imagine in the following structure for graphite specifically. So this would be a more accurate depiction of our structure of graphite. And we can see that we have again a continuous network of covalent bonds. We would observe that here between all of our carbon atoms at each corner of each rink. So now with our types of solids outlined, looking at our examples. One through five, we can see that in example, one graphite being listed as a molecular solid is going to be incorrect because although molecular solids do consist of covalent bonds, we can distinguish the two because molecular solids will consist of London dispersion, dipole, dipole and hydrogen bonding intermolecular forces where in ice we would have hydrogen bonding. Whereas in graphite, it's the strong covalent bonds that are really keeping the molecule together. And the continuous network of covalent bonds in a covalent network solid has greater strength than any of the intermolecular forces that would hold a molecule together. So graphite should not be listed as a molecular solid because of this continuous network of the covalent bonds between the carbon atoms, it should be listed as again a covalent solid. So any answer choice with choice or with option one, we can rule out. So that means we can rule out choices a as well as e since it incorrectly pairs graphite as a molecular solid. Moving on to example two, we're given co a covalent network solid as napthine. Now in napthine, we do not have a continuous network of covalent bonds. So it's also incorrectly paired as its example. So we would actually label it as a molecular solid. So any of our answer choices with option two would be incorrect since we have the wrong example given for a covalent network solid. So we can rule out choices B and then we already ruled out choice A. Now moving on to option three metallic solid being iron, iron, we would recognize as a metal based on its position on the periodic table. And so this is a correct example as a metallic solid and thus a crystalline solid. So that leaves us with choice C as putting a checkmark by so far since it contains option three and then example, four, an ionic solid being cesium bromide recall that cesium is a metal based on its position on the periodic table. And it's bonded to bromine, which is a nonmetal based on its position on the periodic table. And so we would have the following ions being our cesium two plus ion and our B R one minus anion for bromine representing our ionic solid. So choice four or option four definitely is a correct example. So we can also put a check mark by option D. And lastly, we have option five which represents a dipole solid and the example being ice. And as we listed above ice is going to be a molecular solid. So that allows us to rule out choice D, meaning that choice C which states that a metallic solid being iron and an ionic solid being suss and bromide choices three and four would be our final answers. So C is our final answer three and four. I hope that this made sense and let us know if you have any questions.

List three kinds of crystalline solids, and give an example of each.

Verified video answer for a similar problem:

Key Concepts

Ionic Crystalline Solids

Covalent Network Solids

Metallic Crystalline Solids