Domanda del libro di testo
Calculate the fraction of empty space in cubic closest packing to five significant figures.
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Ch.12 - Solids and Modern Material
Tro4th EditionChemistry: A Molecular ApproachISBN: 9780134112831
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TOC.tableOfContents
- Ch.1 - Matter, Measurement & Problem Solving136
- Ch.2 - Atoms & Elements112
- Ch.3 - Molecules, Compounds & Chemical Equations159
- Ch.4 - Chemical Quantities & Aqueous Reactions140
- Ch.5 - Gases118
- Ch.6 - Thermochemistry106
- Ch.7 - Quantum-Mechanical Model of the Atom62
- Ch.8 - Periodic Properties of the Elements103
- Ch.9 - Chemical Bonding I: The Lewis Model104
- Ch.10 - Chemical Bonding II: Molecular Shapes & Valence Bond Theory89
- Ch.11 - Liquids, Solids & Intermolecular Forces73
- Ch.12 - Solids and Modern Material59
- Ch.13 - Solutions110
- Ch.14 - Chemical Kinetics140
- Ch.15 - Chemical Equilibrium78
- Ch.16 - Acids and Bases155
- Ch.17 - Aqueous Ionic Equilibrium176
- Ch.18 - Free Energy and Thermodynamics108
- Ch.19 - Electrochemistry118
- Ch.20 - Radioactivity and Nuclear Chemistry82
- Ch.21 - Organic Chemistry150
Tro4th EditionChemistry: A Molecular ApproachISBN: 9780134112831Non è quello che usi tu?Cambia libro di testo
Capitolo 12, Problema 87
What is a tetrahedral site in a closest-packed lattice formed by?
Guida verificata passo dopo passo1
Understand that a closest-packed lattice refers to the arrangement of atoms in a crystal structure where they are packed as closely as possible.
Recognize that in a closest-packed structure, there are two main types of interstitial sites: tetrahedral and octahedral.
A tetrahedral site is formed when four atoms are arranged in a tetrahedron, creating a small space or void in the center.
Visualize that in a face-centered cubic (FCC) or hexagonal close-packed (HCP) lattice, the tetrahedral sites are located between the layers of atoms.
Remember that these sites are important because they can be occupied by smaller atoms or ions, influencing the properties of the material.
Concetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Closest-Packed Lattice
A closest-packed lattice is a type of crystal structure where atoms are packed together as closely as possible, maximizing density. The two most common arrangements are face-centered cubic (FCC) and hexagonal close-packed (HCP). In these structures, atoms occupy specific positions that minimize empty space, leading to efficient packing and stability.
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00:49
Lattice Energy
Tetrahedral Coordination
Tetrahedral coordination refers to a geometric arrangement where a central atom is surrounded by four other atoms at the corners of a tetrahedron. In a closest-packed lattice, tetrahedral sites are formed when four atoms from the lattice surround a central atom, allowing for specific bonding and spatial arrangements that influence the properties of the material.
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02:40Molecular Geometry of Coordination Complexes
Interstices in Crystal Structures
Interstices are the small spaces or voids between atoms in a crystal lattice. In closest-packed structures, there are two main types of interstitial sites: octahedral and tetrahedral. Tetrahedral sites specifically accommodate smaller atoms or ions, which can fit into these voids without disrupting the overall lattice structure, playing a crucial role in the properties of alloys and compounds.
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01:42Resonance Structures
Pratica correlata
Domanda del libro di testo
X-ray diffractometers often use metals that have had their core electrons excited as a source of X-rays. Consider the 2p → 1s transition for copper, which is called the K⍺ transition. Calculate the wavelength of X-rays (in Å) given off by the K⍺ transition if the energy given off by a mole of copper atoms is 7.77⨉105 kJ.(1Å = 10-10 m)
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