Crystals form in the depths of the Earth to the extension of the clouds in sky. Some think that crystals elude the sight of people’s eyes everyday in life‚ but they are everywhere including ingredients for food‚ construction materials‚ and even in ice-cold weather. The crystals in this experiment are ammonia-generated crystals that can be created right in a home. The experiment will be testing the different effects and products on crystals in different temperatures and forms of light. Different measurements
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Title AS/NZS 3000:2000 Electrical installations (known as the Australian/New Zealand Wiring Rules) Licensee Licensed to LUU MINH LUAN on 25 Feb 2002 Conditions of use This is a licensed electronic copy of a document where copyright is owned or managed by Standards Australia International. Your licence is a single user licence and the document may not be stored‚ transferred or otherwise distributed on a network. You may also make one paper copy of this document if required. Web Check-up
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illumination of a suitable radiation. The photoelectric effect is the phenomenon whereby electrons are emitted from a surface (usually metallic) upon the exposure to and absorption of electromagnetic radiation‚ such as visible light‚ that is above the threshold frequency. This is because electrons cannot get enough energy to overcome their atomic bonding. The photoelectric effect furthered wave particle duality‚ whereby physical systems (i.e.: photons in this case) can display both wave - like
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(MWNTs). Individual nanotubes naturally align themselves into "ropes" held together by van der Waals forces‚ more specifically‚ pi-stacking. Applied quantum chemistry‚ specifically‚ orbital hybridization best describes chemical bonding in nanotubes. The chemical bonding of nanotubes is composed entirely of sp2 bonds‚ similar to those of graphite. These bonds‚ which are stronger than the sp3 bonds found in alkanes‚ provide nanotubes with their unique strength. Types of carbon nanotubes and related
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ATOM Atoms are the basic building blocks of ordinary matter. Atoms can join together to form molecules‚ which in turn form most of the objects around you. Atoms are composed of particles called protons‚ electrons and neutrons. Protons carry a positive electrical charge‚ electrons carry a negative electrical charge and neutrons carry no electrical charge at all. The protons and neutrons cluster together in the central part of the atom‚ called the nucleus‚ and the electrons ’orbit’ the nucleus. A
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General Studies Level 1 Semester in which course is offered: 1 No. of Credits: 4 Total Study Hours: 56 Course Description: This course introduces students to the fundamental concepts in chemistry. It explores the structure of the atom‚ bonding between atoms/particles‚ the concept of the mole‚ redox reactions‚ kinetic theory and energetics. A laboratory component will be used to aid in the understanding of these topics. Course Rationale: CHEM 101 seeks to enlighten students about the historical
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harder and denser than sodium and potassium‚ and have higher melting points. These properties are due largely to the presence of two valence electrons on each atom‚ which leads to stronger metallic bonding. In the nature‚ they are mainly found in their compounds and it is very difficult to separate its bonding with other elements. All react with halogens and‚ except for beryllium; with water and oxygen (magnesium at temperatures higher than those of living things) all oxidizes to the +2 state that
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a particle in a box‚ energy levels‚ wave functions and probability densities‚ Schrodinger wave equation for H-atom‚ Separation of variables‚ Radial and angular functions‚ hydrogen like wave functions‚ quantum numbers and their importance Chemical Bonding: Valence bond theory‚ Hybridization‚ VB theory as applied to ClF3‚ BrF5‚ Ni(CO)4‚XeF2‚ Dipole moment‚ Molecular orbital theory. Stereochemistry of carbon compounds: Stereo isomerism‚ Stereo isomers: enantiomers‚ diastereomers - Conformational and
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Module A Lesson 2: Famous Gemstones and Jewellery Diamond Encrustations British Crown Jewels Koh-I-Noor diamond: (“Mountain of Light”) One of world’s largest diamonds The Cullinan Diamond: largest diamond rough ever found Hope Diamond Deep blue colouration Lack of internal flaws Shows VS1 clarity First sold to King Louis XIV Top ten diamonds by size Diamonds >10 carats = exquisite Diamonds >50 carats = possession of museum/wealth people Diamond >199 carats = not sold
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2012 Table of Contents Page # 1.0 Design 1.1 Focus Question 2 1.2 Hypothesis 2 1.3 Background Theory 2 1.4 Variables in the Investigation 4 1.5 Controlled Variables 5 1.6 Apparatus & Chemicals 5 1.7 Risk Assessment 6 1.8 Experimental Method 8 1.9 Lab Setup 9 1.0 Design 1.1 Focus Question What is the relationship between increasing atomic number of
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