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Articles related to "Electrons"
Electron Shells Electrons captured in an atom don't fly around in circles as they are often depicted, but rather exist in a particular area around the atom. electron • proton • nucleus • electron shell • orbital
The Atomic Universe - Part I This article describes the details of the atom and its inner workings in an attempt to understand the make up and functioning of the human body. atom • electron • electron density • touch • energy
Computational Chemistry - Electrons to Airplanes This article describes the basic types of calculations performed in the study of chemistry and briefly mentions the types of problems suitable to each. chemistry • science • computers • quantum • parallel
The Discovery of the Electron The first discovery of a subatomic particle would come in 1897, when J.J. Thompson first discovered evidence for the existence of the electron. atomic theory • j j thompson • history of the electron • discovery of the electron • george johnstone stoney
Atomic Structure In order to understand many phenomena in the study of chemistry it is important to know how atoms are made up. atoms • electrons • protons • neutrons • structure
Origin of Matter in the Universe In the big bang theory, matter formed in the early universe as elementary particles including protons, electrons, and neutrons. big bang theory • universe • elementary particles • protons • electrons
The Chemistry of Benzene The solution to the problem of a mysterious chemical. Delocalised electrons make the molecule reactive and dangerous benzene • faraday • linus pauling • lead-free petrol • gasoline
The Photoelectric Effect In addition to his work on relativity in 1905, Einstein published an explanation for the photoelectric effect that earned him the 1921 Nobel Prize. photoelectric • photon light • quantum mechnics • quantum physics • photoelectric effect
Aerobic Cellular Respiration Glycolysis, synthesis of acetyl-CoA, Kreb's Cycle and electron transport are the complex series of reactions that turn the food we eat into energy. what is glucose metabolism • aerobic cellular respiration • adenosine triphosphate atp • turning food into energy • autotroph heterotroph
Atomic Orbitals Electrons in atoms are arranged in electronic energy levels, subshells and orbitals. electron • orbital • electronic configuration • periodic table • quantum mechanics
Leptons Leptons, along with fermions (quarks) and bosons (which we will subsequently look at), compose the 'zoo' of elementary particles. leptons • lepton • electron • positron • neutrino
Mass Spectrometry How mass spectrometers work, to identify molecules and mixtures of compounds chemical analysis • electron beam • gcms • electromagnet • francis ashton
Molecular Bonds Atoms join together to form molecules, but how are they held together? molecule • atom • covalent bond • ionic bond • ion
Sticky Feet In order to walk across the ceiling, you got to have "sticky feet". gecko • gekko • sticky feet • lizard • nature
This Little Light of Mine - How Can I Make it Shine? A very brief description of what causes light to be emitted. light • electron • ion • photon • quantum
An Introduction to Biophysics The biological world can often seem like an arbitrary place, but at its heart it is governed by the laws of physics. biophysics • biological physics • laser tweezers • magnetic tweezers • atomic force microscope
The Use of Free Radicals in Cancer Therapy Free radicals are a chemical species characterized by unpaired electrons. Since free radicals are very unstable and highly reactive, they are very damaging to cellular structures. Researchers are using these very characteristics of free radicals as weapons against cancer. free radicals • electrons • antioxidants • radiation • prodrug
Louis de Broglie, Physicist Brief biography of Louis de Broglie who discovered the wave nature of electrons that established the wave-particle dualism. louis de broglie • louis de broglie physicist • de broglie wave-particle duality • de broglie wave nature of electrons • de broglie brief bio
Spectroscopy and Atomic Structure Bohr's atomic model explains how electrons jumping between orbits in atoms cause emission and absorption line spectra and why each element has its own spectral signature. spectroscopy • atomic structure • absorption lines • spectral lines • emission lines
Water – The Chemical for Life Water is polar and contains hydrogen bonds between its molecules which makes it indispensable for life water chemistry • hydrogen • oxygen • ice • steam
An Introduction to Noble Gases Helium, Neon, Argon, Krypton, Xenon and Radon make up the noble gases. Chemically unreactive, or inert, these gases do not form compounds with other elements naturally. noble gases • inert gases • rare gases • ozone • electron configuration
Black Holes Space/Time Distortion Like sharks in the ocean millions of Black Holes wander the universe. And like those creatures the universe needs these galactic wanders to maintain stability. black hole • event horizon • stellar mass • photon sphere • super nova
Chemistry, Atoms, Elements, and Molecules Learn about atoms, elements and molecules. This article also includes a game and an edible chemistry snack! chemistry • atoms • atom • electron • proton
Cold Pasteurization Kills E.coli in Hamburger A Star Wars defense project used to defend us against food-borne pathogens. pasteurization • e. coli • hamburger • cold pasteurization • electron
Henry Taube - Leader in Inorganic Chemistry Henry Taube was the first Canadian born chemist to win the Nobel Prize. He is considered a leader in the field of inorganic chemistry. taube • electron transfer reactions • rates and mechanisms of transition-metal coordinat • reactivity of inorganic substances • mixed-valence molecules
Lindow Man Archaeologists have established the health, social status, even the last meal and cause of death of this Cheshire bog body. However, why he died is a matter of debate. bog body • bog bodies • lindow man • the lindow man • of lindow man
New Carbon Molecules The two forms of elemental Carbon - graphite and diamond - have been joined by further forms, the soccer ball-shaped Buckminsterfullerene and molecular-sized Nanotubes. carbon • diamond • graphite • buckminsterfullerene • nanotube
The Circle of Life The Beginning "We are made of star stuff...atoms heavier than hydrogen were created in the interiors of stars and then expelled into space to be incorporated into later stars." star-stuff • nebula • nuclear fusion • size of stars • gravitational forces
The Circle of Life The End As with all life in the Cosmos, the ending depends largely on the life that was led. death of stars • super nova • red giants • nuclear fuel • gravitational collapse
The Particle Zoo According to Einstein's famous equation, all matter is made of energy, but all matter is also made of fundamental particles - little, discrete, bundles of energy. the standard model • standard model • angular momentum • quantum angular momentum • spin
Wave Particle Duality Light and all types of subatomic elementary particle show properties of both waves and particles. quantum physics • de broglie • wave particle duality • photon light • davisson germer experiment
What Is a Neutrino? Neutrinos are among the most elusive of elementary particles. They were not detected until about 25 years after they were first suggested to exist. fundamental particle • elementary particle • conservation of energy • neutrino • conservation of momentum
What Is Cellular Metabolism? We hear the word used all the time, read diet books on how to boost ours and lament its slowing as we age. But what exactly is metabolism? what is metabolism • aerobic cellular respiration • adenosine triphosphate atp • what is an autotroph heterotroph • glycolysis
What's the Answer? Folklore is more about questions than it is about answers. king arthur • round table • knights • historians • folk lore
Why Our Food Rots: Part V Irradiated food and mail. Both have been controversial and costly ways of preserving food and killing anthrax in our post offices. irradiation • food • irradiate • cesium • cobalt
Eerie Night Skies The night sky can sometimes look very eerie. Join me as we explore the strange skies of the aurora. aurora • northern lights • aurora borealis • aurora australis • southern lights
Plasma Plasma is one of many states of matter, but it is one of the most common four: solid, liquid, gas, plasma. plasma • ionized matter • states of matter • ions • ion
Blood You cut your finger and you bleed. Blood. Some people faint at the sight of it. So if you are feeling queasy, don't read on. blood • science • web sites • bloodletting • leeches
Bugs Bugs! They're everywhere, including the net (and I am not talking about computer bugs). Come and join in the fun. bugs • entomology • insects • metamorphosis • electron microscope
Earth as Art The Library of Congress as an interesting exhibition on display. As well as some science labs. imagination • common • thought • catharsis • art
EBCT Heart Scan - Know Your Risk Heart scanning is rapidly evolving from a luxurious peek inside the heart into a critical tool preventing thousands of cardiac deaths worldwide. ebct scan • heart scan results • heart scan • ischemic heart disease • heart scans
Fundamental Particles What are the smallest constituents or basic building blocks of all matter? fundamental • particles • web sites • science • constituents
Great Exploration Hoaxes Dr. Frederick Cook and Robert E. Peary were experienced Arctic explorers but lied when they said that they reached the top of Mt. McKinley and the North Pole. dr. frederick cook • mt. mckinley • robert e. peary • donald crowhurst • david roberts
What Is the Nucleotide ATP? Adenosine triphosphate is a power-packed nucleotide that cells of our body just can't live without. Here's a clear summary of what ATP is, how it works and how it's made. what is atp • adenosine triphosphate • adenosine monophosphate amp • adenosine diphosphate adp • what is a nucleotide |
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