Welcome to Virtlab! Virtlab is based on the simulations and guided exercises found in N. Simonson & Company's pioneering text: Dynamic Models in Chemistry by Daniel E. Atkinson (University of California, Los Angeles, CA), Douglas C. Virtlab's browser requirements are quite high. Copyright (c) 1989 - 2011 N. AP Chemistry Homepage Everybody is ignorant, only on different subjects. - Will Rogers Are You (really) An AP Chemistry Student? I've had many AP Chemistry teachers respond positively to this particular blog I wrote on AP Chemistry expectations. Before you register for AP Chemistry, you should be fully aware of the course expectations. If you are a student considering signing up for AP Chemistry, do yourself the favor of reading what I've written about your upcoming course selection. Resources for AP Chemistry As always, I make my resources available to any teachers or students who might find them useful. In keeping with the new framework I am indicating on my Reviews page and Powerpoints page if the topic to which a resource relates has been dropped from the curriculum. Some suggestions for success in AP Chemistry - Ignore this at your own peril! I do appreciate hearing from users of this site.
How do I find the number of protons, electrons and neutrons that are in an atom of...? How many protons, electrons and neutrons are in an atom of krypton, carbon, oxygen, neon, silver, gold, etc...? To find the number of protons, electrons and neutrons in an atom, just follow these easy steps: Step 1 - Gather Information The first thing you will need to do is find some information about your element. Go to the Periodic Table of Elements and click on your element. If it makes things easier, you can select your element from an alphabetical listing. Use the Table of Elements to find your element's atomic number and atomic weight. Step 2 - The Number of Protons is... The atomic number is the number of protons in an atom of an element. The interesting thing here is that every atom of krypton contains 36 protons. Step 3 - The Number of Electrons is... By definition, atoms have no overall electrical charge. Electrons are arranged around atoms in a special way. An atom can gain or lose electrons, becoming what is known as an ion. Step 4 - The Number of Neutrons is... In Summary...
chemistry - dawnwelch7 Introductory Activity Rubric Matter and Its Changes Separating Mixtures Lab Information Packet Results: Sugar Crystals Paper Chromatography Tiny Salt Crystals in Crucible States of Matter Atoms, Ions, Isotopes, and Radioactive Decay Electromagnetic Spectrum Quiz Game The Periodic Table Ionic, Covalent & Metallic Bonds and Compounds Discovery Video "Water's Structure" Video (get login and password from Mrs. Naming CompoundsGame Naming Common Polyatomic Ions Game Chemical Reactions Redox Reactions Motion & Forces Energy Transformations Interdependence Developing Abilities for Scientific Inquiry
MolView PERIODIC CHART The periodic chart of the elements.Properties of matter.Periodic properties.Element, ion, and compound symbols.Categories of elements.Noble gases.Metals.Non-metals.Semi-metals.Hydrogen.Groups or families of the periodic chart.A Familiar Periodic Table with Atomic Numbers, Symbols, and Masses. The Periodic Chart of the Elements is just a way to arrange the elements to show a large amount of information and organization. As you read across the chart from right to left, a line of elements is a Period. As you read down the chart from top to bottom, a line of elements is a Group or Family. We number the elements, beginning with hydrogen, number one, in integers up to the largest number. Back to the beginning of Periodic Chart. The Periodic Chart is based on the properties of matter. There are two types of property of matter. We can separate or purify materials based on the properties. Most Periodic Charts have two rows of fourteen elements below the main body of the chart.
Chemistry Now The National Science Foundation (NSF) has joined forces with NBC Learn and the National Science Teachers Association (NSTA) to celebrate the International Year of Chemistry by creating "Chemistry Now"--a weekly, online video series that uncovers and explains the science of common, physical objects in our world and the changes they undergo every day. The series also looks at the lives and work of scientists on the frontiers of the 21st century... More. This video explains and illustrates the molecular structure of sodium chloride (NaCl) crystals; the structure and symmetry of crystal lattices; and why one crystalline solid, salt, melts another, ice. Grant Thompson - "The King of Random" Call it "Mad Science", or just a "Quest for Discovery". These are some of my experiments, and "Random Weekend Projects" Subscribe! New videos every week! WARNING: In many cases, these projects are dangerous and pose risks of personal, or property damage, injury, and in some cases, death. There are some mind-blowing loopholes in this version of life, that for some reason, haven't been issued a patch. I make weekly videos dedicated to exploring life through all kinds of projects, experiments, and real-world life-hacking. Every project is a completely different adventure, and occasionally you'll see an experiment that probably shouldn't be duplicated at all.
Chemistry Each block of the periodic table houses an element, along with a few standard facts about that element: Atomic number: integer equal to the number of protons or electrons in the element. Gold's atomic number is 79.Element symbol: one or two letters. In the case of two letters, the first one is always capitalized. Hydrogen's symbol is just H, while helium's is He. Some periodic tables include the electron configuration (arrangement of electrons) in a corner of the block or below the name of the element. Within the table, the elements are arranged by increasing atomic number, as you'll recall. Each energy level above the first one has sublevels or orbitals. As the atomic number increases and one energy level fills, a new period begins. The electrons of the outermost energy levels are the restless ones that participate in chemical reactions.
Lecture Demonstration Movie Sheets NOTE: The set-up and preparation information for most of these demonstrations is available in the Lecture Demonstration Manual by Bodner, Smith, Keys, and Greenbowe. John Wiley and Sons, Inc. ( prints updated editions on an irregular basis. Copies might also be obtained by contacting George Bodner (gmbodner@purdue.edu). Each sheet provides a quicktime video of the demonstration, a brief description of the materials used, pictures of the equipment used, observations, and explanations. Sheets described as "Under Construction" have no movies associated with them yet, but can still be useful for descriptions and reference material in the interim. Please note that the movie sheets contained on this page are only viewable if your browser supports frames! You may also find the following links useful: Questions? Back to General Chemistry Help Homepage.
Mr. Guch Explains -- A Guch-a-riffic chemistry tutorial! Mr. Guch Explains I have good news and bad news. The bad news is that I'm not going to add to the list below anymore because it's a pain to get everything formatted for the Interwebs. Bonus: Questions I've Answered – Answers to some of the random questions people have asked me. Click HERE to go back to the Helpdesk page. © 1998-2009 Cavalcade Publishing, All Rights Reserved.