What are impurity defects in covalent solids?

Q: What is the difference between a network solid and anionic solid?

A: Solution-  Ionic solids—formed by positive and negative ions and electrostatic attractions and held…

Q: What type of crystalline solid do youpredict would best suit the following needs?a. a material that…

A: The types of crystalline solid which suits the given statements has to be predicted.

Q: Which type of crystalline solid has a high melting point and is a nonconductor of electricity in the…

A: Interpretation: The type of crystalline solid has a high melting pint and is a conductor of…

Q: Why crystal is a widely used material? Why amorphous material is so brittle?

A: Amorphous material are nonequilibrium material whose characteristic atomic arrangement is more like…

Q: What are impurity defects in ionic solids?

A: Solids which consists of oppositely charged ions that is negatively charged anions and positively…

Q: Identify the true statements about surface tension. Molecules along the surface of a liquid behave…

A: Surface tension: It is a force required to increase or expand the surface of a liquid.  This…

Q: List the Properties of Liquid Crystals?

A: The properties of Liquid crystals have to be listed.

Q: Why is hydrogen bonding often not considered a true chemical bond?

A: Intermolecular forces : The forces of attractions exist between different kinds of molecules are…

Q: A substance with a high vapor pressure is an indication that the substance has intermolecular forces…

A: Please find the below attachment.

Q: How does crystallinity affect the mechanical properties of materials.

A: Crystallinity affects the mechanical properties of materials. The thermal performances and…

Q: Hard, brittle, conducts electricity as a liquid but not as a solid are properties of which type of…

A: Covalent network and molecular solids has no free ions or electrons, thus they can't carry out…

Q: 1 Describe the different types of defects present in ionic solids. use diagrams to illustrate.

A: Schottky defect: Same number of positive and negative ions are missing from their respective…

Q: What is the angle between the directions [110] and [111] in a cubic crystal?

A:

Q: In NaCl crystal, Cl– ions form the cubic close packing. What sites are occupied by Na+ ions

A: In NaCl crystal Cl- ions forms FCC (face centre cubic) and Na+ occupies Octahedral voids (OHV).

Q: What is packing fraction ?

A: A way of expressing the variation of isotopic mass from whole mass number (atomic mass) is defined…

Q: Compare and contrast the two types of close-packing in solids?

A:

Q: The crystal that is bound together by weak forces generally has а. high melting point b. low melting…

A: In this question, we will see that what happened in melting point of a crystal when it's have weak…

Q: How does pressure and crystallinity affect density of a material?

A: Crystallinity and pressure affects the density of the material as follows.

Q: Classify the solids as ionic, molecular, metallic, or covalent. Note that covalent compounds are…

A: Ionic Solids are bad Conductor in Solid State and good Conductor in the Liquid State eg: Nacl ,Kcl…

Q: I very hard blue crystal that does not conduct electricity dissolves a little in water and the…

A: Electrical conductor :- A substance which allows electricity to pass through it is called electrical…

Q: One major difference between crystalline and amorphous solids is that Select one: amorphous solids…

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: The normal boiling point of this substance Temperature at critical point Temperature at triple point

A: The phase diagram given is,

Q: Define the following?(i) Crystalline solids (i) Frenkel defects (iii) n-type semiconductor.

A: Solids are made of pure elements or a different variety of compounds. These are hard structures with…

Q: List the types of Crystalline solids?

A: Amorphous and crystalline are the two types of solid. They differ from each other on the basis of…

Q: Name the crystal defect which lowers the density of an ionic crystal.

A: Solids are made up of crystals. Defects are defined as the irregularities in the arrangement of…

Q: How does an amorphous solid differ from a crystalline one? Give an example of an amorphous solid.

A: Difference between amorphous and crystalline solid are as given below-

Q: How are the properties of high-tech ceramics the same asthose of traditional clay ceramics, and how…

A: Ceramics are nonmetallic, inorganic materials that get permanently hardened on heating.  Traditional…

Q: 4. List types of crystal imperfections, give their dimensionality and examples.

A: The crystalline nature of the substances acquires their constituent particles/atoms in the proper…

Q: Which point defect in its crystal units alters the density of a solid?

A: The density alters only when there are vacant positions generated in the lattice crystal. If the…

Q: Distinguish between isotropic and anisotropic substances.To which category do liquid crystals…

A: Liquid crystals are the substances that have a crystalline structure and packed with a high degree…

Q: the thin structure that surrounds a cell is known a

A: The structural and functional unit of life that is the basic unit of an organism is termed the…

Q: form an orderly arrangement and it takes a very high energy to break the arrangement. B) In ionic…

A:

Q: Define about hydrogen bonding ?

A: In chemistry, we deal with many kinds of bonds like polar, covalent and non-polar, etc. But there is…

Q: What is the coordination number of atoms in the diamond structure?

A: A diamond is a precious stone and crystalline form of pure carbon with its arranged atoms.

Q: WHich are The Fundamental Types of Crystalline Solids?

A:

Q: Simple cubic a - R relationship Number of atoms/cell APF Coordination Number

A:

Q: Which type of solid has mobile electrons in the crystal (sea of electrons)?

A: Metallic soild (crystal)  It has been observed that in the metallic crystal or solid, the metals…

Q: A solid composed of metal ions is referred to as A solid whose particles are held together by…

A: Metals have tendency to donate electrons and then they take positive charge.

Q: Variable hardness, variable brittleness, not conductive are properties of which type of solid?…

A:

Q: What is a polymorph?

A: Polymorphism is the concept of Material Science which is about the ability of a solid material…

Q: As water cools, instead of moving closer together, the molecules hold each other at arm's length…

A: Since ice has less density than liquid water.

Q: 1. What are the principal natural processes that affect the petrophysical properties of sedimentary…

A: The main petro-physical properties of sedimentary rocks are thermal diffusivity, conductivity,…

Q: What type of solid is required to separate by magnetism?

A: There are many types of alloys present. But to extract to concentrate the alloy different methods…

Q: Non-crystalline ceramics deform by -

A: Noncrystalline ceramics(Amorphous ceramics) being glasses are usually formed through melting.

Q: What kinds of attractive forces exist between particles (atoms, molecules, ions) in covalent-network…

A: Covalent  solid also called as network solid are extended lattice compound. Network solid include…

Q: What are Nonbonding atomic solids? Give some examples?

A: Nonbonding atomic solids are having atoms as constituent particles in their solid phase. Examples…

Q: Q2// To calculate the surface density of atoms on a particular plane in a crystal. Consider the…

A:

Q: What are the three categories of crystalline solids?

A: The three categories of crystalline solids has to be given,

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.