Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Atoms and Molecules States of Matter Let’s Take a Microscopic View of Different States of Matter. http://www.harcourtschool.com/activity/state s_of_matter/ Plasma Atoms All matter, such as solid, liquid and gases, is composed of atoms. Atom Atoms have three basic parts Proton Neutron Electron Atoms Atoms Nucleus – is the center. There are two types of charges found in the nucleus. Protons Neutrons Protons & Neutron Protons have a positive charge. Neutrons have no charge. Electrons Electrons have negative charge. They are found circling the nucleus in paths called orbits. Facts on Atom Protons have a positive charge equal in magnitude to the electron’s negative charge. Neutrons have the same mass as a proton, but no charge. The Mass and Charge of the Electron, Proton, and Neutron Particle Mass Charge Electron Proton Neutron 9.11 X 10-31 kg 1.67 X 10-27 kg 1.67 X 10-27 kg 11+ None Atomic Number & Atomic Mass Atomic Number – the number of protons in an atom. Atomic Mass = Number of protons + number of neutrons. Symbol – one or two letters that stand for the name of the element. Let’s Practice Refined Bohr’s Model Resources http://lc.brooklyn.cuny.edu/smarttutor/core3_22/images/Atom_structure_ne w.gif http://www.nsf.gov/news/special_reports/water/images/watermol_flash.jpg http://en.wikipedia.org/wiki/Plasma_(physics) http://ocw.mit.edu/OcwWeb/Nuclear-Engineering/22-611JIntroduction-toPlasma-Physics-IFall2003/CourseHome/ http://www.moonraker.com.au/techni/lightning-marine.htm http://education.jlab.org/qa/atom_model.html http://www.biblelife.org/heavymetal-atom.jpg http://www.ipp.phys.ethz.ch/aboutus/_media/atom_zoom_b.jpg http://www.cubicao.tk/nature/imgs/energymatter_05.jpg http://www.cubicao.tk/nature/imgs/energymatter_06.jpg http://misterguch.brinkster.net/subatomic%20particles.html http://cutlerscove.com/kwg/knife-steel.htm http://pt.chemicalstore.com/images/thumbnails/aluminum.gif