Chromium has a density of 7.19 g/cm3 and crystallizes in a body-centered cube. What is the atomic radius of chromium in picometers?

Q: Barium crystallizes in a body-centered cubic system with atoms at all lattice points and an edge…

A: The density formula is given as follows,

Q: Outline the type of defects in Crystalline structure

A: To outline the type of defects in Crystalline structure.

Q: Under which situations can an amorphous substance change to crystalline form?

A: Crystalline solid is a three dimensional arrangement of a solid in which particle of solid are…

Q: 5.1Gold has a density of 19.32 g/cm3, and the atoms are packed in a face- centered cubic crystal…

A: Note: As per our guidelines, we are supposed to answer only the first question (question number…

Q: calculate density in g cm^-3 - molar mass is 200.5 g.mol - simple cubic lattice - radius of 185 pm

A: Given, The radius of atoms, (r)=185 pm. The edge length of the unit cell, (a)=2r=370 pm=3.70×10-8…

Q: What is the difference between an amorphous solid and a crystalline solid on the macroscopic and…

A: To find: The difference between an amorphous solid and a crystalline solid on the macroscopic and…

Q: 2. What element forms a face centered cubic cell, has a density of 8.92 g/cm', and a radius of 128…

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

Q: What is the true density of Zr, an HCP crystal, in g/cm3? Given: Atomic Number = 40  Atomic Weight =…

A:

Q: 5. What is the difference between a crystalline solid and an amorphous solid?

A: Crystalline solids have a definite shape. They have long range order of regular pattern of…

Q: 2. At 1425 degrees centegrade Fe crytallizes in a body centered cubic lattice whose edge length is…

A: a) Radius of sphere can be calculated by  a√3 = 4r  where, a = edge length  => r = a√3/4  => r…

Q: Classify the solid state of the following substances as ionic crystals, covalent crystals, molecular…

A: (a) CO2 =Molecular Crystal  (b) B12= Molecular Crystal (c) S8 = Metallic crystal (d) KBr = Ionic…

Q: Which type of crystalline solid is formed by each substance: (a) CaCl 2; (b) Fe (iron); (c) sugar (C…

A: (a)

Q: Which substance is expected to have the LOWEST melting point? Select one: A. HCl B. CO2 C. N2 D.…

A: The temperature at which a substance changes its state from solid to liquid is known as melting…

Q: 8.15 Polinium is the only metal that forms a simple cubic crystal structure. Use the fact that the…

A:

Q: What is the fundamental difference between an amorphous solid and a crystalline solid?

A: Solids are of two types based on their structure. They are amorphous solids and crystalline solids.

Q: Which of the following solids would be expected to display the highest melting point? O A. KBr O B.…

A: Ionic compound has ionic force, the strongest inter-molecular force. That's why they possess very…

Q: An ice (H2O) crystal may be best described as which type of crystal? A)  ionic   b)  covalent  c)…

A: Molecular solids ; A crystalline solid that consists of molecules held together by intermolecular…

Q: MCQ 5: Tetrachloride with the lowest boiling point is A. SICI, B. CCI C. SnCl, D. PbCl4

A:

Q: 1. What type of crystal will each of the following substances form in its solid state? Choices to…

A: [a.] C2H6 – Covalent [b.] Na2O – Ionic [c.] SiO2 – Covalent [d.] CO2 – Covalent [e.] N2O5 – Covalent…

Q: The ionic compound, CsCl, forms a body centered cubic structure (see below) where the anions occupy…

A: Given : Structure of CsCl is BCC i.e body centered cubic. Density of CsCl = 3.99 g/cm3  And ionic…

Q: Which of the following solids has the highest melting point? O Cao O CaF2 O Mgo O MgCl2

A: Given,  Which of the following solids has the highest melting point ? a). CaO  b. CaF2  c. MgO  d.…

Q: Some hypothetical metal has simple cubic crystal structure. If its atomic weight is 61.25 g/mol and…

A: Given,  Atomic mass of the metal = M = 61.25 g/mole  Atomic radius = r = 0.174 nm  Avogadro's number…

Q: Which substance would have the lowest viscosity? C8H18 C5H12 C12H26 C3H8

A: The viscosity of the liquid is depend upon the intermolecular force . Higher the intermolecular…

Q: Using your knowledge of solid types and their properties, predict (and explain) the order of the…

A: Different type of solids have different properties and melting points of these substances depend on…

Q: Classify the crystalline forms of these substances as ionic crystals, covalent crystals, molecular…

A: Given, substances are : 1. CO2 2. B 3. S8 4. KBr 5. Mg 6. SiO2 7. LiCl 8. Cr 9. Sr 10. MgCl2…

Q: 1. Classify each of the following into ionic, molecular, covalent or metallic solid. a. Au b. NO2 C.…

A:

Q: what form of unit particles makes up each type of crystal

A: There are 4 types of crystals – Ionic crystals Molecular crystals Covalent crystals Metallic…

Q: 3. Describe the crystal structure of iron, which crystallizes with two equivalent metal atoms in a…

A:

Q: At very low temperatures oxygen, O2, freezes and forms a crystalline solid. Which best describes…

A:

Q: Iron has a density of 7.87 g/cm^3 and crystallizes in a body-centered cubic structure. What is the…

A: Body centred cubic unit cell have atoms that occurs at the corners as well as in the centre of unit…

Q: A certain metal crystallizes in a body-centered cubic arrangement and has a density and atomic…

A: Density of a unit cell (ρ) The equation to find out the density of a unit cell is; ρ=mass per unit…

Q: GIVE ONE EXAMPLE OF THE FOLLOWING PROCESSESS SUBLIMATION \ MELTING EVAPORATION CONDENSATION FREEZING

A: Sublimation is the process by which a substance makes transition from solid phase to gaseous phase…

Q: Classify the solid state of the following substances as ionic crystals, covalent crystals, moleculan…

A: There are different type of solids depending on their constituent particles. Like - (1) Ionic solids…

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: 1) What type of crystal will each of the following substances form in its solid-state? Choices to…

A: Ionic compounds have ions in their solid state.  Metallic compounds have metal in solid state.…

Q: Nickel has a face-centered cubic structure and has a density of 8.90 g/cm3. Calculate its atomic…

A: Given, the density of nickel = 8.90 g/cm3 It is also given that nickel has face-centered cubic…

Q: Polonium is the only metal that forms a simple cubic crystal structure. Use the fact that the…

A: The question is based on solid state. we have to calculate radius of the given Polonium atom.…

Q: Classify the solid state of the following substances as ionic crystals, covalent crystals, molecular…

A: Ionic crystal- An ionic crystal is a crystalline ionic compound .They are solid consisting of ions…

Q: Strontium metal, Sr, crystallizes in a face-centered cubic arrangement. What is the radius (in…

A: In this question we have to calculate the radius of one atom in picometer which crystallizes in FCC.…

Q: Butter melts over a range of temperatures, rather than with a sharp melting point. Butter is…

A: In crystalline solids, the constituent particles (atoms, ions or molecules ) are arranged in a…

Q: The density of Ni is 8.90 g/cm3. Does nickel crystallize in a simple cubic structure? Explain.

A: The density of Ni = 8.90 g/cm3. The edge length of the unit cell for nickel = 0.3524 nm Weight of 1…

Q: 4- A naturally occuring gold crystallizes in face centred cubic structure and has a density of 19.3…

A:

Q: Which substance has the highest melting point?     Kr     Cl 2     Mg     SiO 2 (silica)     C…

A: Melting point:

Q: Which of the following solids would be expected to display the highest melting point? a) NaCl b)…

A: The question is based on the concept of melting point. the temperature at which a solid starts…

Q: The ionic compound, CsBr, forms a body centered cubic structure (see below) where the anions occupy…

A:

Q: What is the edge length in pm for a simple cubic with a radius of 145 pm?

A:

Q: The phase that never gains in sublimation is: solid O liquid O gas vapors

A: Sublimation is the transition of a substance directly from the solid phase to the gas phase without…

Q: What is the true density of Zr, an HCP crystal, in g/cm3? Where: Atomic Number = 40  Atomic Weight…

A:

Q: Describe the fundamental types of crystalline solids?

A: A solid is a state of matter in which the substance keeps its shape and maintains a consistent…

Q: /hich one of the following is an example of an ionic solid? (A) Cao (В) Cr Graphite D Sucrose

A: Given that a question of four molecules  CaO, cr graphite and sucrose.  Which compounds are…

Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.