Transparent materials, such as some glasses, do not absorb any visible light. Why?

Q: What is correct from multiple choice

A: Viscosity of a liquid is defined as its tendency to keep from flowing means the resistance…

Q: What are Liquid Crystals?

A: The solid material whose atoms are arranged in a definite order giving the formation of a lattice…

Q: It's unclear to me what the word "homogeneous structure" really refers to.

A: A relational first order structure is homogeneous if every isomorphism between finite substructures…

Q: 5. Strontium (Sr: [Kr]5s2) crystal has a mass density of 2.64 g/cm3 and a molar mass of 87.62 g/mol.…

A: Mass density = 2.64 g cm-3 Molar mass   = 87.62 g mol-1

Q: Explain the terms : (a) Intrinsic semiconductor (b) Extrinsic semiconductor.

A: Intrinsic semiconductor: Naturally occurring property of pure material, the number of electrons in…

Q: What are the name and formula of the compound commonly used in the manufacture of glass to increase…

A: Lead and silicon have similar type of chemical properties but due to heavy mass it has more density.

Q: Define the term body-centered cubic lattice?

A: Lattice is a part of crystal, which is a 3D arrangement of atoms, molecules, or ions. Furthermore,…

Q: Metallic calcium crystallized in a face-centered cubic lattice, and the atomic radius of calcium is…

A:

Q: What property of water makes it a good medium for heat exchange in calorimetry? A) High liquid…

A:

Q: Q.A20 Complete the following sentence: The mechanical properties of polymers are... (A) brittle (B)…

A: A polymer can be define as a  natural or synthetic substances composed of very large molecules which…

Q: In its natural form,_______ is in the form o blue crystals.

A: The question is based on the concept of inorganic chemistry. We have to identify the compound whose…

Q: Define the term critical point?

A: The term critical point has to be defined below.

Q: The density of gold is 19.31 g/cm3. If the metallic radius of gold  is 407.9 pm, what is the…

A: Crystal  structure - The arrangement of atom, molecule of a crystal in the form of space lattice

Q: Briefly explain the difference between particle and crystal size

A: One of the four basic states of matter is solid. A solid's molecules are densely packed together and…

Q: I am given a sample of an unknown metal X. The density of the metal is 8.90g/cm3. X-ray diffraction…

A:

Q: Gold forms a face-centered crystal structure and has an atomic radius of 2.75 x 10-$ cm. Compute for…

A:

Q: what type of environment will an N atom reside in a natural diamond

A: Diamond is an allotrope of carbon. It is very hard material use for drilling.  Natural diamond is a…

Q: The largest molecule for which a diffraction pattern has been observed is buckminsterfullerene, C60…

A:

Q: What type of crystal structures possess the least degree of symmetry?

A: ANSWER

Q: Melting gold with other metals makes 10-karat gold. Which term best describes 10-karat gold?

A: 10 karat gold is an alloy . Alloy are the homogeneous mixture. Since alloy contain more than one…

Q: Platinum nanoparticles of diameter ∼2 nm are importantcatalysts in carbon monoxide oxidation to…

A: (a) For face-centered cubic crystal lattice, the relationship between radius and edge length is…

Q: Below, two x-ray diffraction patterns obtained from two samples of the same material, but different…

A: According to Debye-Scherrer equation D = Kλ/βcosθ D= crystal size λ= wavelength  β= full width of…

Q: Requires a light source with a wavelength between 10 picometers and 10 nanometers X-ray…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: When an X-ray beam with a wavelength of 126.5 pm is incident on a metal crystal, it produces a peak…

A: Given: Wavelength = 126.5 pm Angle = 31.2 oC

Q: Platinum nanoparticles of diameter ∼2 nm are important catalysts in carbon monoxide oxidation to…

A: (a) For face-centered cubic crystal lattice, the relationship between radius and edge length is…

Q: a. Compute the densities of totally crystalline and totally amorphous polyethylene terephthalate. b.…

A: Step : 1             The answer for the following questions.

Q: Explain why X rays can be used to measure atomic distancesin crystals but visible light cannot be…

A: Diffraction is a phenomenon which enables us to measure the interatomic distance in crystals.…

Q: surface energy of a single crystal

A: The surface energy of a single crystal depends on crystallographic orientation . The surface energy…

Q: Why is refractive index commonly used within the beverage and food processing industries? What is…

A:

Q: Which of the following is not true ? a.A green solution will absorb color in the red wavelength…

A: Answer:option C *A solution with green colour means it absorbs the light in red and blue regions.…

Q: The basic reason for the extraordinary sparkle of suitably cut diamond is that ?

A: Diamond features a very high index of refraction (about 2.42 compared to about 1.5 for glass). The…

Q: Which of the following statements describe phosphorescence?

A: We know that Phosphorescence is a non- radiative transition from triplet state to ground state (T1…

Q: Refractive index' is equal to' speed of light in material/speed of light in air .a speed of light in…

A: To define Refractive index.

Q: Which of the following statements is NOT true about quantum dots? a. Emits intense fluorescence b.…

A: Quantum dots are semiconductor particles having optical and electronic properties that differ from…

Q: Platinum nanoparticles of diameter ∼2 nm are important catalysts in carbon monoxide oxidation to…

A: Given: Diameter of the nanoparticles=2 nm Edge length=3.924A° To find: The number of platinum atoms

Q: A hypothetical element, Le, has a body centered cubic structure with a density of 6.93 g/cm?.…

A:

Q: 2) The most intense peak of the x-ray diffraction pattern obtained from a freshly laid metallic…

A:

Q: The property of a material that measures the response of the solid to visible light. conductivity B)…

A: There are various properties which are divided among various categories like mechanical property,…

Q: The fact that metals have amazing properties of conductivity, malleability and non-directionality is…

A: Given statement ' The fact that metals have amazing properties of conductivity, malleability and…

Q: 4. How fast does light travel in glass of refractive index 1.5?

A: Please find your solution below : Refractive Index of a medium is defined as the ratio of speed of…

Q: What are the two reasons that make hydrogen atoms difficult to detect with X-ray diffraction?

A: X- ray diffraction is a technique, in which electron position are determined based upon x -ray…

Q: How do the appearances of metals, semiconductors and insulators differ? Why?

A: A question based on conductivity property, which is to be accomplished.

Q: Distinguish sodium chloride structure and diamond structure. Provide an illustration to support your…

A: The main difference is – Sodium chloride is ionic and have Rock salt type structure while  Diamond…

Q: With proper reasons justify at room temperature why silicon is opaque and silicon dioxide is…

A: The silicon ( Si) (Z=14)  is opaque at room temperature. The silicon dioxide (SiO2) transperent at…

Q: Addition of B2O3 to soda-lime glass results in a denser glass with a higher refractive index results…

A: Addition of metal oxide changes the property of glass.

Crystallography

Crystallography is the category of science that focuses on the atomic and molecular arrangements with their bonding constituting the crystal structure. It is derived experimentally and originated in the year 1912. It is a combination of two words; those are crystal, meaning a cold drop, and graph, meaning writing.