background preloader

Build an Atom - Phet

Build an Atom - Phet
Topics Atoms Atomic Structure Isotope Symbols Atomic Nuclei Description Build an atom out of protons, neutrons, and electrons, and see how the element, charge, and mass change. Then play a game to test your ideas! Sample Learning Goals Use the number of protons, neutrons, and electrons to draw a model of the atom, identify the element, and determine the mass and charge.Predict how addition or subtraction of a proton, neutron, or electron will change the element, the charge, and the mass.Use the element name, mass, and charge to determine the number of protons, neutrons, and electrons.Define proton, neutron, electron, atom, and ion.Generate an isotopic symbol for an atom, given the number of protons, neutrons, and electrons.

Related:  Física y QuímicaRóżności

10 Incredible Chemical Reaction GIFs Explained We encounter thousands of chemical reactions every day: plants use them in photosynthesis, metals rust over time, and combustion reactions provide us with heat and light, among thousands of other daily uses. Chemical reactions occur when reactants transform into new substances, called products, through creating and breaking bonds between atoms. Sometimes the process creates some pretty wild effects. Check out our top 10 chemical reactions below: 1) Disintegration (Mercury Reacts with Aluminum) Practical Physics This website is for teachers of physics in schools and colleges. It is a collection of experiments that demonstrate a wide range of physical concepts and processes. Some of the experiments can be used as starting-points for investigations or for enhancement activities. Many have links to carefully selected further reading and all include information and guidance for technicians. Physics is a practical science. Practical activities are not just motivational and fun: they can also sharpen students’ powers of observation, stimulate questions, and help develop new understanding and vocabulary.

How to Write Electron Configurations for Atoms of Any Element Edit Article Assigning Electrons Using a Periodic TableUsing an ADOMAH Periodic Table Edited by George B., Ben Rubenstein, Flickety, KnowItSome and 84 others Dark matter is the thread connecting galaxy clusters Simulations of the Universe on the largest scales show an unexpected resemblance to nerve cells in the human brain, with galaxy clusters playing the role of the cell body and thinner filaments of matter linking them like axons. Galaxy surveys (such as the Sloan Digital Sky Survey, or SDSS) show that galaxies do cluster like our simulations predict. But the filaments that should connect them have been harder to find.

5 Skills That Will Make You a More Valuable Filmmaker There are tons of skills that will make you a better filmmaker, but have found these 5 skills to be invaluable. Here are 5 skills that I like to see in filmmakers I hire or 5 skills he/she is willing to develop. Watch the video above to see all 5 tips and read the conclusion below to see the payoff of mastering these skills.

Creative Chemistry - Flame Tests Student notes First make sure that you have a clean flame test wire. Do this by holding the metal loop in the hottest part of the Bunsen burner flame. If it is clean, there should be no change in the colour of the flame when the metal loop is put in it. If it is not clean, clean it by dipping it into the concentrated acid provided, then holding the loop in the Bunsen burner flame.

Electron Distributions Instructions Before viewing an episode, download and print the note-taking guides, worksheets, and lab data sheets for that episode, keeping the printed sheets in order by page number. During the lesson, watch and listen for instructions to take notes, pause the video, complete an assignment, and record lab data. Reflective Surfaces Can Ruin Your Shots. Here Are Some Quick Fixes "Reflective surfaces are a pain in the ass," said every filmmaker ever. Say you've just canned a glorious tracking shot. When you go to review the footage, however, you're dismayed to find out that you tracked past three windows, and in every single one of them you can see the dolly and camera crew, the boom operator, and some PA holding coffee that is wandering around like a lost puppy. Almost every filmmaker I know has dealt with this problem in some form or another, and it's one that every up and coming filmmaker will encounter at some point in their lives.

Flame Tests - How to Do a Flame Test for Qualitative Analysis Flame Test Introduction The flame test is used to visually determine the identity of an unknown metal or metalloid ion based on the characteristic color the salt turns the flame of a bunsen burner. The heat of the flame excites the electrons of the metals ions, causing them to emit visible light. Every element has a signature emission spectrum that can be used to differentiate between one element and another. How to Do the Flame Test Classic Wire Loop Method First, you need a clean wire loop. FISICA DINAMICA: Algodoo Algodoo is now available as a free download. If you want to support the development of Algodoo you can purchase it from the Appstore with all its benefits. Or, you can simply download it for free below, either way is fine with us.