Engineering Physics,
CRYSTALLOGRAPHY,
Simple cubic, Body-centered cubic, Face-centered cubic,
DIAMOND STRUCTURE,
Atomic Packing Factor of Diamond Structure,
Projection of diamond lattice points on the base
Solid state chemistry- laws of crystallography- Miller indices- X ray diffraction- Bragg equation- Spectrophotometer- Determination of interplanar distance- Types of crystal
Contains information about various crystal types in solid state chemistry like Rock Salt, Wurtzite, Nickel Arsenide, Zinc Blende etc. It also gives a brief description of lattice energy and Born Haber cycle.
The ideal, perfectly regular crystal structures in which atoms are arranged in a regular way does not exist in actual situations. In actual cases, the regular arrangements of atoms disrupted . These disruptions are known as Crystal imperfections or crystal defects
Solid state chemistry- laws of crystallography- Miller indices- X ray diffraction- Bragg equation- Spectrophotometer- Determination of interplanar distance- Types of crystal
Contains information about various crystal types in solid state chemistry like Rock Salt, Wurtzite, Nickel Arsenide, Zinc Blende etc. It also gives a brief description of lattice energy and Born Haber cycle.
The ideal, perfectly regular crystal structures in which atoms are arranged in a regular way does not exist in actual situations. In actual cases, the regular arrangements of atoms disrupted . These disruptions are known as Crystal imperfections or crystal defects
This is a powerpoint showing the Pangaea theory. A theory of the continents once forming a huge super continent before breaking apart. Alfred Weneger, a German scientist, was the one who thought of the continents once existing as one before splitting and breaking apart.
In this presentation, you will find a situation analysis for "Warwick Pangea Beach Resort & Spa"
Pangea had few difficulties on a strategic level. So i decided to study the market in order to understand it and recommend few strategic decisions "management & marketing" in order to keep the business growing.
For all employers, you will see in this presentation how i handle situation analysis and recommend specific marketing needs based on of every case.
For more information, check the situation analysis.
Serge Rizkallah
Marketing Executive
This is a booklet consisting of answer for a certain chemistry booklet. If my teacher is reading this, I'm sorry.
This is a booklet consisting of answer for a certain chemistry booklet. If my teacher is reading this, I'm sorry.
This is a booklet consisting of answer for a certain chemistry booklet. If my teacher is reading this, I'm sorry.
This is a booklet consisting of answer for a certain chemistry booklet. If my teacher is reading this, I'm sorry.
General Theory of electronic configuration of atomsIOSR Journals
The “General Theory of electronic configuration of atoms” is an original study introduced by the author in chemistry in 2004. In this paper, the author developed a new method to write the electronic configuration for any atom, regardless of whether it actually exists or not in nature. This new method is based on Quantum theory and on three new and original formulae introduced and developed by the author. This method can be used to gather information about any atom’s properties: its period, its group, its peripheral number of electrons and its theoretical electronic peripheral configuration. The main advantage of this method is that one can immediately knows the information about an atom, by a simple hand calculation without the need of software. Even if the atomic number is huge (as Z=123453). This method can be used in general chemistry courses and it is an extremely efficient method used for teaching and in the exam.
So any atomic number can be developed and we can find its electronic configuration regardless of whether it actually exists or not in nature.
-The traditional method of writing an electronic configuration is like this
⏞ ⏞ ⏞ ⏞ ⏞ ⏞ Until finding the peripheral electronic configuration.
So the new method developed in this paper is mainly works on the peripheral electronic configuration without passing through the traditional method. It gives us directly the peripheral electronic configuration, for example ⏞ .
In this way we have eliminated a very long process of calculation. This is a big advantage for the proposed method ahead the traditional one.
The main goal of introducing this paper is to reduce the calculation of obtaining the main information about an atom for example its period, group, number of electrons in the peripheral configuration and finding its peripheral electronic configuration as fast as possible even if the atom doesn’t exist in reality. This paper doesn’t explain the relativistic effects, because it is not the main goal of the proposed theory. We can still obtain the information about any atom without considering the relativistic effects.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
4. Diamond cubic structure is obtained when two FCC sublattices
interpenetrates along the body diagonal by 1/4th cube edge.
http://www.materialsdesign.com/appnote
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The space group of diamond is .
There are eight carbon atoms at the corner, creating a cube.
The six carbon atoms in the faces create an octahedron.
The four internal carbon
atoms (black balls in figure)
lie at ¼ of the distance along
body diagonal forming a
tetrahedran.
mdF 3
C
C F C
C
C
C F C
C
F F F F
I I
I
I
The letters on the ball mean:
C – Corner atom
F – Face atom
I – Internal atom
6. Square on the right hand side indicates the base of the cube.
1/4
1/4
a
8. a
0 0 0
0
0
0 0
0 0
01/2 1/2
1/2
1/2
1/4
1/4
The number ‘0’ and fraction ‘½’ denote the height above the base.
1/2 1/2 1/2 1/2
9. a
0 0 0
0
0
0 0
0 0
01/2 1/2
1/2
1/2
1/4
1/4
1/4
1/4
The number ‘0’ and fractions ‘½’ and ‘¼’ denote the height above the base.
1/2 1/2 1/2 1/2
1/4 1/4
10. a
0 0 0
0
0
0 0
0 0
01/2 1/2
1/2
1/2
1/4
1/43/4
3/4
1/4
1/4
The number ‘0’ and fractions ‘½’ , ‘¼’ and ‘¾’ denote the height above the base.
1/2 1/2 1/2 1/2
1/4 1/4
3/43/4
11. Atomic Packing Factor
n = ? and r = ?
3
3
3
4
a
rn
cellunittheofVolume
atomonetheofVolumecellunitainpresentatomsofNumber
cellunittheofVolume
cellunitainatomsbyoccupiedvolumeTotal
APF
To solve APF of diamond structure, we need ‘n’ and ‘r’.
12. Atomic Packing Factor
nfcc = (1/8 x 8 corner atoms) + (1/2 x 6 face atoms)
= 1+3
= 4 atoms.
n = 4+4
= 8
r = ?
There are atoms at all eight corners and all six faces.
In addition to that there are 4 full atoms inside the unit cell.
Total number of atoms present in a unit cell.
13. Atomic Packing Factor
8
3
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15. please contact me via email for any further suggestions/comments.
Email: virendrave@gmail.com
Visit the below website for other topics
http://sciencebank.wordpress.com/