GO1) Calculate density of an atom of Polonium in g/cm2) Calculate density of the atom of Nickel3) Calculate density of the atom of Calcium4) Silver crystallize in an FCC structure, the edge of length of its unit cell is409 pm. 1pm=10E-12a) What is the atomic radius of Ag in this structure?b) Calculate the density of 1 atom of Ag Recall:For a sphere: v= 4/3IIr³Number of Avogadro : 6,02 10E²³ atomþ polonium =202 g/molI polonium = 336 10E_1²mþ Nickel =58,69 g/molI Nickel = 0,3524 nmþ calcium =40,078 g/mol1 calcium = 558,8 10E_12 mþ silver =107,86 g/mol1 silver = 409 10E_12 m

Given: The mass of polonium per mole, mpo = 202 g/mol The radius of polonium atom, rpo = 336x10-12 m…

Answered: 1 GO 1) Calculate density of an atom of…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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You are given the density of a metal as 2.07 g/cm³. You are advised the crystallographic structure is fcc, and the atomic mass is 25.5 g/mol. What is the atomic radius of the metal? a. 0.15 nm b. 0.12 nm c. 0.11 nm d. 0.18 nm
Zinc hasthe hexagonal close-packed crystal structure. The lattice parameters for zinc are a = 0.26648 nm and c = 0.49470 nm, and the atomic radius is 0.1332 nm. Note that zinc does not have the ideal atomicpacking facto1: a)What is the number of atoms per unit cell in the hexagonal close-packed structure? b)Determine the atomic packing factor of the Zn unit c)Is the c/a ratio for zinc greater than or less than the ideal HCP c/a ratio? Will slip be harder or easier in zinc compared to the ideal HCP structure? Explain your answer fully.
Consider the two ceramic atomic packing arrangements shown in the Figure. The radius of the anion is RA=0.2 nm. At i) the smallest stable cation size in I) and ii) the largest stable cation radius in II), what are the radii of the cations? What are these arrangements called? Select one: 1) 2RA a. 0.155 RA, 0.414 RÃ; triangular and tetrahedral O b. 0.225 RA, 0.732 RA: cubic, triangular C. 0.225 RA, 0.732 RA; tetrahedral, octahedral O d. 1.00 RA, 0.155 R₁; hexagonal, triangular 11)
a) What is the difference between atomic structure and crystal structure? Explain with sketch. b) Based on atomic weights and structural information show that gold (FCC) and tungsten (BCC) essentially have the same density. (Agold = 197 amu/atom, Atungsten = 183.9 amu/atom, agold = 0.4079 nm, Atungsten = 0.3165 nm) i) Calculate the density of each. ii) Show that the atomic packing factor for BCC is 0.68
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Q1 a) If the atomic radius of aluminum is 0.143 nm, calculate the volume of its unit cell in cubic meters. b) Compute the linear density of the [100] direction for FCC. Calculate the planar density of the (110) plane for BCC.
The equilibrium fraction of lattice sites that are vacant in an metal at 900 OC is 6.17 x 10-5. a) Calculate the number of vacancies (per meter cubed) at 900 °C. Assume g/cm3 for gold and atomic weight of 196.9 g/mol a density of 19.32 b) Calculate the energy required for vacancy formation for the same metal take k = 8.62 x 10- 5 eVlatom K
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Vanadium (V) has a BCC crystal structure. The atomic radius is R = 0.132 nm and the atomic mass is M = 50.94 g/mole. What is the density of Vanadium in g/mm3? Given: Avogadro’s Number NA = 0.6023 × 1024 (atoms/mole) Select one: a. 1.5 b. 0.021 c. 0.011 d. 0.0087 e. 0.00597
Calculate the theoretical density of NiO, given that it has the rock salt crystal structure. You may want to use the table below. The atomic weights for Ni and O are 58.69 g/mol and 16.00 g/mol, respectively. Ionic Radius (nm) P = i Cation Fe²+ Ni²+ Mg2+ Mn2+ g/cm³ 0.077 0.069 0.072 0.067 Anion 0²- S²- Ionic Radius (nm) 0.140 0.184
4- Calculate the linear density of atoms (atoms/cm) in the [100], [110] and [111] directions in FCC copper (ao = 3.62 Ao). 5- Calculate the planner density of atoms (atoms/cm²) in BCC iron (ao = 2.86 Ao) in the (100), (110) and (111) planes.
Vanadium (V) has a BCC crystal structure. The atomic radius is R = 0.132 nm and the atomic mass is M = 50.94 g/mole. What is the density of Vanadium in g/mm ? Given: Avogadro's Number NA = 0.6023 x 1024 (atoms/mole) Select one: O a, 0.021 O b. 0.011 Oc.1.5 d. 0.0087 e. 0.00597 Potassium (K) has the Body-Centered Cubic (BC) crystal structune. The edge length is a = 0.533 nm. What is the linear density in atoms/nm along direction (01112 Select one: O ENG O O 0 00

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