Exercise 2 Consider the following crystal structures. **** Ba TI Fig.2 For each structure: a- Find the motif b- Draw the lattice of points

Q: ) Determine the radius of Al atoms (in pm) if the density of FCC Al is 2.31 g/cm3.[_______] pm

A: FCC stands for the face-centered cubic system in which the atoms are present at the center of the…

Q: 46) The bonding character of silicon carbide, a ceramic material, is: a) Purely ionic b) Purely…

A: Silicon carbide (SiC) is a ceramic material composed of silicon (Si) and carbon (C) atoms.

Q: None

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Q: Question 24 Which of the following elements does not form a fixed charge ion? O Na OP O CI Co

A: The ions of elements have either positive charged or negative charged on it.

Q: How many of carbons 2p orbitals are left unhybridized in CO2? 2.

A: To determine the number of unhybridized 2p orbitals of C in CO2

Q: El. Identify each of the six structures shown in Figure C3. (Is it oblique, square, hexagonal?). Use…

A: In solid state, atoms are connected to form a 3-dimensional network in a definite geometrical…

Q: H:C:::N: or H-C=N: Answer the following questions about the hydrogen cyanide, HCN, molecule. The…

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Q: stion 1 Is the lattice energy of CaO higher than that of CO? No They have the same lattice energy…

A: Lattice energy is defined as the energy required to separate a mole of an ionic solid into gaseous…

Q: Question 18 1 Point Which of the following best describes the VSEPR structure of BrO3- and TeBr4…

A: Bromine belongs to VII A element. Therefore bromine can form two double bonds with two oxygens and…

Q: Choose all molecules that are octahedral. Select all that apply. a) xenon octafluoride b) sulfur…

A: Octahedral geometry have sp3d2 hybridisation for this stearing number should be 6 Stearing no = no…

Q: The missing of atoms from the lattice sites is called : a) Vacancy defects, B) interstitial defects,…

A: The lacking or missing of atoms or ions in any crystal structure or lattice is called solid defect.…

Q: What crystal structure has a total of 4 atoms and has 6 half atoms and 8 quarter atoms? Answer:

A:

Q: Which one of the following does not have tetrahedral electron domain geometry? O SF2 O PCI3 SO2 O…

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Q: Define the covalent bonding of atoms. With the aid of diagrams, show the covalent bonding of…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Question 28 What is the electron group (EG) geometry and molecular geometry (MG) of H2SE? O (EG)…

A: Given  Compound = H2Se Electron Group Geometry and Molecular Geometry = ?

Q: 1)Which type of bond would be expected in molecule of LiF? A)ionic b) polar covalent c)nonpolar…

A: Since you have posted multiple questions, the answer for first question is given below. Kindly…

Q: When ZnO nanoparticles absorb UV radiation, the absorbed light is used to break Zn-O bond forming Zn…

A: Given statement is :  When ZnO nanoparticles absorb UV radiation, the absorbed light is used to  a).…

Q: Check Your Learning Silver crystallizes in an FCC structure. The edge length of its unit cell is 409…

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Q: Hydrogen is -1 when bonded to metal and +1 when bonded to nonmetal. Question 1 options: a)…

A: yes , its a true statement like in NaH - Na has positive charge and H has negative charge and for…

Q: Determine the number of valence electrons in CH,CI, and then draw the corresponding Lewis structure.…

A: Lewis structure is the representation of valence electrons arrangements around central atoms.

Q: A compound with two elements A and B has the cubic structure. A atoms are situated at the corners of…

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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: Which of the following molecules or ions contain polar bonds? (Choose all that apply)     a)  H2S…

A: Polar bond - If a molecule contains two or more different atoms then molecule said to have polar…

Q: _7 Assuming all of the following molecules are planar, which one can be labeled antiaromatic? HN IV…

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Q: HIUIH Use electronegativity, dipole arrows, and arquments of symmetry to determine why vinegar is…

A: As we know the concept of 'like dissolve like'. That means polar solute dissolve in polar solvent…

Q: Question 19 Which one of the following is an example of an ionic solid? A Cr Sucrose C C Cao D…

A: Calcium oxide is ionic because it is formed between a metal and non-metal .

Q: 17. silver oxide 18. cobalt (II) bromide 19. sodium phosphide 20. copper (II) fluoride

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Q: Borane, B2H6, forms dimers in which 2 hydrogen atoms bridge between the boron atoms forming 3-center…

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Q: How many atom does a Face-Centered Cubic structure contain?   1   3   2   4

A: Given atom has face centred cubic structure. Atoms are present at every face and corner of FCC…

Q: Practice on Binary Ionic Compounds Write the chemical formula for the following binary ionic…

A: Nickel (II) Sulfide :- NiS  Nickel has +2 charge and Sulfide has -2 charge so they combine and give…

Q: Shown below is one face of a hypothetical face-centered cubic unit cell. The cell length (short side…

A: Face centered cubic unit cell- (FCC)  For FCC -  ABCD  ∆ ADC AC 2= DC2 + AD2b2 = a2 + a2 = 2a2b 2=…

Q: Choose all molecules that are trigonal bipyramidal. Select all that apply. a) phosphorous…

A: A molecule in which the central atom is bonded with five atom and does not contain a lone pair on…

Q: Question 22 What is the term for a bond composed of two electron pairs shared between two atoms? A)…

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Q: ICl5 draw all possible lewis structure show process

A: Iodine valence electrons = 7x1atom = 7, chlorine valence electrons = 7x5atoms = 35, for a total of…

Q: The energy level in which lie Indium atoms in a silicon sample is: O a. In the gap band near the…

A: The addition of impurities to the semiconductors is known as doping. This is done to intensify the…

Q: Calculate the APF for: (a) Simple cube (SC) and (b) Body-centered cubic (BCC) structures.

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Q: The crystal structure of a new ionic compound shown below obarniurm trumptide. Ob ions are…

A: From the figure , it is given that corner and faces are Ob( as they are represented by solid sphere)…

Q: What best compares the properties of ionic and metallic substances? Group of answer choices A…

A: The melting point of compound depends upon the kind of forces of attraction that exist between…

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.