Calculate the energy for vacancy formation (in J/mol) assuming that the density of the metal remains the same over this temperature range.

Q: 16. A hypothetical element, Le, has a body centered cubic structure with a density of 6.93 g/cm3.…

A: We have to calculate the atomic radius

Q: Molybdenum has a BCC crystal structure, an atomic radius of 0.1363 nm, and an atomic weight of 95.94…

A: For BCC structure, number of atoms per unit cell = 2 Radius = 0.1363 nm Edge, a∘…

Q: A hypothetical element, Le, has a body centered cubic structure with a density of 6.57 g/cm.…

A: Given: Density of element = 6.57 g/cm3 Atomic mass of Le = 55.334 g/mol. And the lattice is BCC.

Q: A hypothetical element, Ny, forms a face-centered cubic lattice with an atomic radius of 165 pm.…

A: Consider the given information is as follows; Molar mass of Ny (M) = 112.024 g/mol    Face-centered…

Q: Silver has an atomic radius of 0.144 nm and a density of 10.49 g/cm³. Determine whether it has an…

A:

Q: Which element remain liquid at a solid room temperature

A: Given  Condition = Room temperature  Liquid element in this temperature = ?

Q: Explain how the conductivity of electricity and the high boiling points of metals are explained by…

A: The conductivity of electricity and the high boiling points of metals are explained by a metallic…

Q: Which element is a liquid at 758 K and standard pressure? A) Gold B) Silver C) Platinum D) thallium

A:

Q: Iron (atomic radius = 124 pm) crystallizes in a body-centered structure.  Calculate the density of…

A: In a  body-centered structure, atoms are present on all corners and body centre only. And since each…

Q: Alloys have numerous advantages in industrial applications. Which combination of metals is…

A: A metallic substance composed of two or more metals is alloy. Here we have to tell which metals…

Q: Which arrangement of cations (yellow) and anions (blue)in a lattice is the more stable? Explain your…

A: Anions have negative charge and hence repel each other, so the most favorable arrangement of ions in…

Q: A hypothetical element, Le, has a body centered cubic structure with a density of 6.93 g/cm3.…

A:

Q: A hypothetical element, Le, has a body-centered cubic structure with a density of 7.89 g/cm3.…

A: Given;

Q: A hypothetical element, Ny, forms a face-centered cubic lattice with an atomic radius of 166 pm.…

A: To solve this problem we will use the formula   D = ZM / a3 NA  Where,  D = density  Z = Number of…

Q: Explain what is Hexagonal Closest Packing?

A: Crystalline solids: Crystalline solids have systematic and repeated units. The three dimensional…

Q: A hypothetical element, Le, has a body centered cubic structure with a density of 6.93 g/cm³.…

A:

Q: A hypothetical element, Le, has a body centered cubic structure with a density of 6.93 g/cm³.…

A: Since you have posted multiple questions, we are entitled to answer the first only. Given: Lattice…

Q: A hypothetical metal, which is a single crystal and made up of one chemical element, has an FCC…

A: FCC structure means face centered cubic arrangement, here total 4 atoms used to present in a

Q: Briefly explain why chemically similar alkali metal chlorides, NaCl and CsCl, have different…

A:

Q: A hypothetical element, Ny, forms a face-centered cubic lattice with an atomic radius of 166 pm.…

A: Given an hypothetical element, Ny forms a face centered cubic latticewith an atomic radius of 166…

Q: The number of vacancies in a metal decreases by a factor of 6. When Temperature is decreased from…

A:

Q: How much heat, in kilojoules, is absorbed when a 48.11 g sample of cesium metal is heated from 16.6…

A: Mass of cesium metal = 48.11 g Atomic mass of Cs = 132.9 g/mol So, moles = given mass/ atomic mass =…

Q: 19. Which substance forms a metallic lattice? OK O C(graphite) O 12 O MgS

A:

Q: A hypothetical metal, which is a single crystal and made up of one chemical element, has an FCC…

A:

Q: A (made-up) metal has a face-centered cubic crystal structure. Its density is 20.5 g/cm 3. Its molar…

A: Given: Density of metal = 20.5 g/cm3. The lattice structure of the metal is FCC. And the molar mass…

Q: A hypothetical element, Ny, forms a face-centered cubic lattice with an atomic radius of 166 pm.…

A: Face centered cubic lattice Radius = 166 pm Atomic mass = 117.947 g/mol Density = ?

Q: Niobium crystallizes in BCC structure and has a density of 8.55 g/cm^3. Calculate its atomic radius…

A: Given  Structure type = BCC density ( d ) = 8.55 gram/cm3 Atomic mass ( M )  = 93 gram/mole Atomic…

Q: Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant.…

A:

Q: Define crystal structure?

A: A crystal structure is a unique arrangement of atoms in a crystal. A crystal structure is composed…

Q: A hypothetical element, Ny, forms a face-centered cubic lattice with an atomic radius of 166 pm.…

A: Formula Density of Ny = (Z×M)/(N0×V)

Q: If 20.15% of the atoms in a sample of tin are replaced by copper atoms without any change to the…

A:

Q: A hypothetical element, Ny, forms a face-centered cubic lattice with an atomic radius of 159 pm.…

A: Given,  Hypothetical element = Ny  Structure of Ny = Face-centered cubic lattice  Atomic radius of…

Q: Arrange the substances in order of (predicted) increasing polarizability: H :Br: :Br: H. H H. Br:…

A:

Q: Based on their formulas, classify each of the following in the solid state as a molecular, ionic,…

A:

Q: Indicate the strongest force holding the crystals together in the following substances by putting a…

A: Since you have posted a question with multiple sub-parts, as per guidelines we will solve the first…

Q: INTERPARTICLE FORCES 129 4. The melting points of Na and Mg at 1 atm are 98°C and 650°C,…

A: Noble gas shorthand electron configuration is the way of writing any element's electron…

Q: A hypothetical element, Le, has a body centered cubic structure with a density of 6.79 g/cm3.…

A: Given that, density of body centered cubic structure (d) = 6.79 g/cm3 Atomic mass = 56.389 g/mol

Q: released

A: Moles of C = ( mass / molar mass of C )  Moles of C = ( 0.8g / 12.01gmol-1 )  Moles of C = 0.067 mol…

Q: A hypothetical element, Le, has a body centered cubic structure with a density of 6.93 g/cm3.…

A: Answer :- (B) 129.61 pm  Atomic radius of of hypothetical element, Le = 129.61 pm…

Q: A certain element exists in a face-centered cubic structure. The atomic radius of an atom of this…

A:

Q: Indicate the strongest force holding the crystals together in the following substances by putting a…

A: There are various type of intermolecular forces are present in molecules such as dipole-dipole,…

Q: sentences describe the difference in structure or the arrangement of particles of a crystalline and…

A: Answer - Crystalline solid - A crystal or crystalline solid is a solid material whose constituents…

Q: A hypothetical element, Le, has a body centered cubic structure with a density of 7.98 g/cm3.…

A:

Q: 1. The chart below shows three allotropes of carbon. ALLU1HOMIC UHMS O CAKSUN These three forms have…

A: Carbon is an element which can exist in different physical forms. The capacity of C to exist in…

Q: Since the vapor pressure of diethylether at 18 ° C is 401 mmHg, calculate the pressure at 32 ° C…

A:

Q: Indicate the strongest force holding the crystals together in the following substances by putting a…

A:

Q: Density of a metal (M) is 6.11 g cm, a 1.766 g sample of this metal is completely reacted under…

A:

Group 14 Elements

The following elements come under group 14 of the periodic table.